Practice using time conjunctions with this interactive worksheet from LiveWorksheets.

Let's solve this exercise step by step. The task is to choose the correct time conjunction from the list provided:
Once, until, before, after, while, as soon as, when

We need to fill in the blanks with the most appropriate conjunction based on the meaning of each sentence.

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1. ______ it gets dark, he'll light the fire.

✔ When
→ "When it gets dark" is a common phrase indicating a point in time.
✔️ *When* is correct here.

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2. I'll call you ______ I leave work.

✔ as soon as
→ This means the call will happen immediately after leaving work.
✔️ "As soon as" shows immediacy.

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3. I watered the plants ______ my husband mowed the lawn.

✔ while
→ Both actions happened at the same time.
✔️ "While" connects two simultaneous events.

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4. He arrived ______ everybody had gone home.

✔ after
→ He came later than everyone else.
✔️ "After" indicates a sequence: others left first, then he arrived.

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5. You can repay me ______ it's sold.

✔ once
→ "Once it's sold" means "after it has been sold" — a future condition.
✔️ "Once" = as soon as / when (in a conditional sense).

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6. He was the headteacher ______ he retired in 1998.

✔ until
→ He held the position up to the time of retirement.
✔️ "Until" shows duration up to a point.

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7. Think very carefully ______ you choose.

✔ before
→ Advice to think ahead of making a decision.
✔️ "Before" indicates an action prior to another.

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8. I promise to tell you my results ______ as I get them.

✔ as soon as
→ Immediate action upon receiving results.
✔️ "As soon as" fits perfectly here.

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9. I read the newspaper ______ I was waiting for the kettle to boil.

✔ while
→ Two things happening simultaneously.
✔️ "While" is used for ongoing actions.

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10. We'll go outside ______ it has stopped raining.

✔ when or as soon as
But let’s look closely:
- "When" implies it may take some time after stopping.
- "As soon as" implies immediate action.
👉 But since the sentence says “it has stopped raining” (present perfect), and we're talking about going out after that moment, “as soon as” is more natural.
✔ as soon as

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11. ______ I pass all my exams, I'll be fully qualified.

✔ Once
→ A condition: once the exams are passed, qualification follows.
✔️ "Once" = as soon as / after

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12. The movie didn't finish ______ 11pm.

✔ until
→ Negative construction: "didn't finish until" means it ended at 11pm.
✔️ Standard structure: *not...until*

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13. I went for a run ______ breakfast.

✔ before
→ The run happened earlier than eating breakfast.
✔️ "Before breakfast" is a common phrase.

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14. Kevin phoned me ______ you left.

✔ after
→ Kevin called following your departure.
✔️ "After" indicates the sequence of events.

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✔ Final Answers:

1. When it gets dark, he'll light the fire.
2. I'll call you as soon as I leave work.
3. I watered the plants while my husband mowed the lawn.
4. He arrived after everybody had gone home.
5. You can repay me once it's sold.
6. He was the headteacher until he retired in 1998.
7. Think very carefully before you choose.
8. I promise to tell you my results as soon as I get them.
9. I read the newspaper while I was waiting for the kettle to boil.
10. We'll go outside as soon as it has stopped raining.
11. Once I pass all my exams, I'll be fully qualified.
12. The movie didn't finish until 11pm.
13. I went for a run before breakfast.
14. Kevin phoned me after you left.

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📌 Summary of Conjunction Use:

| Conjunction | Meaning |
|-----------|--------|
| When | At the time that something happens |
| As soon as | Immediately after something happens |
| While | During the time that something is happening |
| After | Following a point in time |
| Before | Prior to a point in time |
| Until | Up to a certain point in time |
| Once | As soon as / after a condition is met |

This exercise helps reinforce how time relationships affect word choice in English!