Subordinating Conjunctions interactive exercise - Free Printable

Let’s go through each sentence one by one and pick the best subordinating conjunction from the list to make the sentence make sense.

We have these options:
after, as if, although, as, because, before, since, unless, while, if, until, than, when, where, though, whenever

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1. Mummy does not stop worrying ________ we return home.
→ She worries *until* we get back. “Until” shows something continues up to a point in time.
✔ until

2. Marisa arrived at school ________ the bell was rung.
→ This means she got there *at the same time* or *just after* the bell rang. “When” fits perfectly.
✔ when

3. Kareem left the party ________ the guest of honour arrived.
→ He left *before* the important person came. That makes sense — maybe he didn’t want to stay?
✔ before

4. ________ you do not understand what is taught, you ask questions.
→ This is giving advice: *if* you don’t get it, then ask. “If” starts a condition.
✔ If

5. We went to the pool ________ it was a hot day.
→ Why did they go? Because it was hot! So we need a reason → “because”
✔ because

6. You will not pass your examinations ________ you study diligently.
→ This is a warning: you won’t pass *unless* you study hard. “Unless” = if not.
✔ unless

7. My father asked me ________ I was leaving.
→ He wants to know the *time* or *moment* you’re going. “When” works here.
✔ when

8. Mr. Thomas took Leon to the doctor ________ he was not feeling well.
→ Again, this gives a reason → “because”
✔ because

9. ________ eating her dinner, Vidya did her homework.
→ She did homework *while* eating. Two things happening at once.
✔ While

10. ________ it was late, Micheal submit his assignment.
→ Even though it was late, he still submitted. Shows contrast → “Although” or “Though”. Both work, but “Although” is more common at the start of a sentence.
✔ Although

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Final Answer:
1. until
2. when
3. before
4. If
5. because
6. unless
7. when
8. because
9. While
10. Although