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TOEIC Part 5 Time Linking Words:
Sequence, Duration and Clauses

Connect workplace events clearly with 20 original time-clause questions, all option explanations, timeline reasoning and transfer tasks.

English AIdol · Published · Updated

Prepared with AI assistance and published by English AIdol. No human expert review is claimed.

TOEIC Part 5 Time Linking Words: Sequence, Duration and Clauses

What this guide covers

Step-by-step guide

  1. Read the pattern

    Compare the explanations and original examples.

  2. Choose and explain

    Keep the sentence unchanged and justify one option.

  3. Transfer the skill

    Use the distinction in a new workplace sentence.

A time linker tells readers how events relate: which happens earlier, which continues and which happens at the same time. Before and after can both form grammatical sentences, but they reverse the sequence. A fair question must make that sequence clear.

The clause after a linker also needs the right structure. In ordinary future schedules, present forms follow when or as soon as even when the main clause uses will. An indirect question beginning with when is a different construction and may contain will.

These original exercises were prepared by English AIdol with AI assistance. A separate AI content review checked every question, answer explanation and teaching section. No human expert or examiner review, ETS endorsement, or calibrated difficulty is claimed. This page does not save answers or estimate an official score.

What this lesson practises

Part 5 asks you to complete sentences by choosing from four options. The full TOEIC Reading section has 100 questions and a 75-minute limit. This untimed topic lesson is not a complete or equated test. See ETS: About the TOEIC Listening and Reading Test and the ETS: TOEIC Listening & Reading Score User Guide.

Read the pattern in context

Use present forms for ordinary future time clauses

When, once and as soon as can introduce the time of a future event using a present simple or present perfect verb. This is not a ban on every will after when: indirect questions and modal meanings are different cases.

  • We will call when the parcel arrives.
  • Once you have checked the total, send the invoice.
  • I wonder when the parcel will arrive.

Preserve the required order

Before puts one event earlier than another; after puts it later. As soon as emphasises the immediate relationship. A context may allow more than one linker, so compare the stated sequence rather than guessing from tense alone.

  • Disconnect the unit before opening the cover.
  • After the inspection ends, issue the report.

Distinguish continuation from a completion boundary

Until continues a state or action to an endpoint. Not until places an event no earlier than that endpoint. By the time identifies a boundary relative to another event; a perfect form often highlights prior completion.

  • Wait until the indicator turns green.
  • Do not move the crate until the straps are released.
  • By the time we arrived, the briefing had ended.

Choose a clause or a noun phrase

While can introduce a full subject–verb clause; during introduces a noun phrase. Before and after may take noun phrases or -ing clauses as well as finite clauses. Keep an omitted subject logically tied to the main action.

  • Take notes while the trainer speaks.
  • Take notes during the demonstration.
  • After reading the guide, check the fittings.

Worked example

We will release the payment as soon as the bank ___ the transfer.

confirms

As soon as introduces an ordinary future time clause. The singular bank takes present confirms; will belongs in the main clause and is not repeated for simple futurity here.

20 original workplace questions

Choose the option that completes the printed sentence in standard written English. Keep every other word unchanged. Write your choice and a reason before opening the explanation.

Question 1

The loading team will start unloading as soon as the delivery truck ___.

(A) will arrives

(B) arriving

(C) arrive

(D) arrives

Show answer and explanation for question 1

Answer: (D) arrives

Completed sentence: The loading team will start unloading as soon as the delivery truck arrives.

  • (A) will arrives: Will requires a base verb, and this phrase also mishandles the time-clause pattern.
  • (B) arriving: Arriving leaves the subject without a finite verb.
  • (C) arrive: Arrive lacks agreement with the singular truck in this clause.
  • (D) arrives: Correct. The future time clause uses present arrives with the singular truck.

Review the relevant pattern.

Question 2

Please notify reception when the visitors ___ ready to leave.

(A) is

(B) are

(C) be

(D) will are

Show answer and explanation for question 2

Answer: (B) are

Completed sentence: Please notify reception when the visitors are ready to leave.

  • (A) is: Is does not agree with the plural visitors.
  • (B) are: Correct. The plural visitors take present are in this future time clause.
  • (C) be: Be alone is not the finite verb of this ordinary time clause.
  • (D) will are: Will cannot be followed by the finite form are.

Review the relevant pattern.

Question 3

The guide answered questions ___ the visitors were examining the display.

(A) during

(B) within

(C) while

(D) throughout

Show answer and explanation for question 3

Answer: (C) while

Completed sentence: The guide answered questions while the visitors were examining the display.

  • (A) during: During takes a noun phrase, not this subject–verb clause.
  • (B) within: Within cannot directly introduce this finite clause.
  • (C) while: Correct. While introduces the full clause the visitors were examining.
  • (D) throughout: Throughout requires a noun phrase instead of this full clause.

Review the relevant pattern.

Question 4

The guide answered questions ___ the demonstration.

(A) during

(B) while

(C) when

(D) as soon as

Show answer and explanation for question 4

Answer: (A) during

Completed sentence: The guide answered questions during the demonstration.

  • (A) during: Correct. During introduces the event noun phrase the demonstration.
  • (B) while: While the demonstration lacks a predicate for the intended time clause.
  • (C) when: When the demonstration is incomplete as a finite time clause here.
  • (D) as soon as: As soon as requires a clause rather than the event noun alone here.

Review the relevant pattern.

Question 5

To avoid exposing live wiring, disconnect the power ___ opening the service panel.

(A) before

(B) after

(C) during

(D) since

Show answer and explanation for question 5

Answer: (A) before

Completed sentence: To avoid exposing live wiring, disconnect the power before opening the service panel.

  • (A) before: Correct. The prevention context requires disconnecting earlier than opening the panel.
  • (B) after: After would allow the panel to be opened while power remained connected.
  • (C) during: During cannot take opening the service panel as this verbal complement.
  • (D) since: Since does not express the required preventive sequence in this instruction.

Review the relevant pattern.

Question 6

Inspection must finish first; only ___ it ends may the packed crates leave the depot.

(A) before

(B) during

(C) after

(D) by

Show answer and explanation for question 6

Answer: (C) after

Completed sentence: Inspection must finish first; only after it ends may the packed crates leave the depot.

  • (A) before: Before would reverse the explicit inspection-first requirement.
  • (B) during: During cannot introduce the finite clause it ends.
  • (C) after: Correct. After places departure later than completion of the required inspection.
  • (D) by: By alone cannot introduce this finite time clause.

Review the relevant pattern.

Question 7

The alarm will continue sounding ___ someone resets the control panel.

(A) by

(B) until

(C) during

(D) for

Show answer and explanation for question 7

Answer: (B) until

Completed sentence: The alarm will continue sounding until someone resets the control panel.

  • (A) by: By cannot introduce the full clause someone resets.
  • (B) until: Correct. Until marks the endpoint of the continuing alarm.
  • (C) during: During requires a noun phrase, not this finite clause.
  • (D) for: For does not introduce the endpoint clause in this construction.

Review the relevant pattern.

Question 8

Do not disconnect the drive ___ the copying process has finished.

(A) by

(B) during

(C) within

(D) until

Show answer and explanation for question 8

Answer: (D) until

Completed sentence: Do not disconnect the drive until the copying process has finished.

  • (A) by: By cannot directly introduce the printed subject–verb clause.
  • (B) during: During cannot be followed by this full clause.
  • (C) within: Within requires a noun phrase rather than the printed clause.
  • (D) until: Correct. Not until means the drive must stay connected up to completion.

Review the relevant pattern.

Question 9

After ___ the guest list, the coordinator printed the badges.

(A) check

(B) checks

(C) checking

(D) to check

Show answer and explanation for question 9

Answer: (C) checking

Completed sentence: After checking the guest list, the coordinator printed the badges.

  • (A) check: Bare check cannot directly follow after in this structure.
  • (B) checks: Checks is finite but lacks a subject after after.
  • (C) checking: Correct. After can introduce an -ing clause whose understood subject is the coordinator.
  • (D) to check: A to-infinitive does not follow after in this time construction.

Review the relevant pattern.

Question 10

Before ___ the revised contract, please read the cancellation terms.

(A) signing

(B) sign

(C) signed

(D) to sign

Show answer and explanation for question 10

Answer: (A) signing

Completed sentence: Before signing the revised contract, please read the cancellation terms.

  • (A) signing: Correct. Before takes an -ing clause with the same understood subject as the request.
  • (B) sign: A bare verb does not complete this before clause.
  • (C) signed: Before signed the contract lacks the subject needed for a finite clause.
  • (D) to sign: To sign is not the complement form used after before here.

Review the relevant pattern.

Question 11

Once the supplier has ___ the order, we will send the deposit.

(A) confirm

(B) confirms

(C) confirming

(D) confirmed

Show answer and explanation for question 11

Answer: (D) confirmed

Completed sentence: Once the supplier has confirmed the order, we will send the deposit.

  • (A) confirm: Confirm is base form rather than the participle after has.
  • (B) confirms: Confirms is finite present tense and cannot follow has.
  • (C) confirming: Confirming would need been to form a continuous phrase.
  • (D) confirmed: Correct. Present perfect in the time clause uses has plus the participle confirmed.

Review the relevant pattern.

Question 12

We will reopen the entrance after the contractors have ___ the barrier.

(A) remove

(B) removed

(C) removes

(D) removing

Show answer and explanation for question 12

Answer: (B) removed

Completed sentence: We will reopen the entrance after the contractors have removed the barrier.

  • (A) remove: Remove is not the participle needed after have.
  • (B) removed: Correct. Have requires the participle removed in this future time clause.
  • (C) removes: Removes is a finite singular form, not a participle.
  • (D) removing: Have removing cannot form the required perfect phrase.

Review the relevant pattern.

Question 13

By the time the guests reached the hall, the caterer had ___ all the tables.

(A) prepare

(B) prepared

(C) prepares

(D) preparing

Show answer and explanation for question 13

Answer: (B) prepared

Completed sentence: By the time the guests reached the hall, the caterer had prepared all the tables.

  • (A) prepare: Had requires a past participle, not base-form prepare.
  • (B) prepared: Correct. Had prepared places the table preparation before the guests’ arrival.
  • (C) prepares: Prepares cannot follow the perfect auxiliary had.
  • (D) preparing: Preparing would need been before it in a continuous phrase.

Review the relevant pattern.

Question 14

The assistant checked the labels while the technician ___ testing the scales.

(A) were

(B) did

(C) had

(D) was

Show answer and explanation for question 14

Answer: (D) was

Completed sentence: The assistant checked the labels while the technician was testing the scales.

  • (A) were: Were does not agree with the singular technician in this factual clause.
  • (B) did: Did requires a base verb rather than testing.
  • (C) had: Had testing lacks been and does not form a perfect continuous phrase.
  • (D) was: Correct. The singular technician takes was before the printed -ing form testing.

Review the relevant pattern.

Question 15

The new rule starts immediately on approval: it takes effect as soon ___ the director signs it.

(A) as

(B) than

(C) to

(D) that

Show answer and explanation for question 15

Answer: (A) as

Completed sentence: The new rule starts immediately on approval: it takes effect as soon as the director signs it.

  • (A) as: Correct. As completes the fixed time conjunction as soon as.
  • (B) than: Than forms comparisons, not the conjunction as soon as.
  • (C) to: To does not complete as soon before a finite clause.
  • (D) that: That cannot replace the final as in this conjunction.

Review the relevant pattern.

Question 16

The showroom will remain closed until the repairs ___ complete.

(A) is

(B) be

(C) are

(D) will being

Show answer and explanation for question 16

Answer: (C) are

Completed sentence: The showroom will remain closed until the repairs are complete.

  • (A) is: Is does not agree with the plural repairs.
  • (B) be: Be is not a finite verb in this factual time clause.
  • (C) are: Correct. Plural repairs take are in the future time clause.
  • (D) will being: Will being is not a valid future auxiliary phrase.

Review the relevant pattern.

Question 17

While ___ the shelves, the assistant found an unlabelled sample.

(A) reorganising

(B) reorganise

(C) reorganises

(D) to reorganise

Show answer and explanation for question 17

Answer: (A) reorganising

Completed sentence: While reorganising the shelves, the assistant found an unlabelled sample.

  • (A) reorganising: Correct. While can take a reduced -ing clause with the assistant as its understood subject.
  • (B) reorganise: Bare reorganise cannot form this reduced time clause.
  • (C) reorganises: The finite reorganises lacks a stated subject after while.
  • (D) to reorganise: A to-infinitive does not form this while clause.

Review the relevant pattern.

Question 18

The printer will resume once the technician ___ the paper tray.

(A) reinstall

(B) reinstalling

(C) reinstalls

(D) will reinstalls

Show answer and explanation for question 18

Answer: (C) reinstalls

Completed sentence: The printer will resume once the technician reinstalls the paper tray.

  • (A) reinstall: Reinstall fails singular present agreement with the technician.
  • (B) reinstalling: Reinstalling alone cannot be the finite predicate after the subject.
  • (C) reinstalls: Correct. The ordinary future time clause uses present reinstalls with the singular subject.
  • (D) will reinstalls: Will cannot be followed by the finite form reinstalls.

Review the relevant pattern.

Question 19

Use the signed copy, not the draft, after both parties have ___ the agreement.

(A) sign

(B) signed

(C) signs

(D) signing

Show answer and explanation for question 19

Answer: (B) signed

Completed sentence: Use the signed copy, not the draft, after both parties have signed the agreement.

  • (A) sign: Sign is base form and cannot follow have here.
  • (B) signed: Correct. Have signed uses the past participle in the completion clause.
  • (C) signs: Signs is finite present tense rather than the required participle.
  • (D) signing: Signing would require been after have to make a continuous phrase.

Review the relevant pattern.

Question 20

Please wait here while I ___ a visitor pass for you.

(A) prepares

(B) preparing

(C) to prepare

(D) prepare

Show answer and explanation for question 20

Answer: (D) prepare

Completed sentence: Please wait here while I prepare a visitor pass for you.

  • (A) prepares: Prepares does not agree with first-person I.
  • (B) preparing: Preparing needs an auxiliary such as am after I.
  • (C) to prepare: I to prepare does not form a finite time clause.
  • (D) prepare: Correct. I takes prepare in this present time clause.

Review the relevant pattern.

Use the pattern in a new situation

Explain the distinction in your own words, then try these tasks without copying a practice sentence. The answers illustrate possible responses; alternatives may work where the task allows them.

Transfer 1

Correct “We will contact you when the parcel will arrive” as an ordinary schedule promise.

Check transfer 1

We will contact you when the parcel arrives.

The future time clause normally uses present arrives; the main clause carries will.

Transfer 2

Replace the noun phrase in “during the briefing” with the clause “the manager speaks”.

Check transfer 2

while the manager speaks

During cannot directly introduce that finite clause; while can.

Transfer 3

Compare “Wait until the doors open” and “Leave before the doors open.”

Check transfer 3

The first continues waiting to the opening; the second requires departure earlier than the opening.

Draw two short timelines to keep duration and order distinct.

Sources, authorship and next practice

Sources checked on . The examples, questions and explanations are original teaching material, not official or recalled test items. This correction replaces the earlier lesson’s inappropriate IELTS-style scoring. An answer count on these exercises does not convert to an official TOEIC score.

Continue with the TOEIC study page. For a factual correction, see our editorial policy.

Frequently Asked Questions

Is will always wrong after when?

No. An indirect question such as I wonder when it will arrive can use will. The present-form pattern here concerns ordinary future time clauses.

Can while and during mean roughly the same time?

Yes, but they take different structures: while the team meets versus during the meeting. Match the expression to the words that follow it.

Do before and after determine the tense by themselves?

No. Their main contribution is event order. Tense and aspect depend on the wider time context; a linker alone is not a complete tense rule.

Can these questions predict my TOEIC score?

No. These original, untimed teaching questions have not been equated to an ETS form. Use them to explain and practise a language pattern, not to calculate an official score.