As, when and while | Grammar exercise

Complete the following sentences using as, when and while.

If you would like to learn the correct use of these conjunctions before doing this exercise, go to this study page.

1. ………………………. she was younger, she used to spend a lot of money on cosmetics.

a) As

b) When

c) While

2. She published her first book ………………… she was just sixteen.

a) when

b) as

c) while

3. ……………………. I was driving down the street, I saw a strange sight.

a) As

b) When

c) While

4. …………………… I closed my eyes, I heard a strange noise.

a) As

b) When

c) While

5. Martin tidied the lounge, …………………. I cooked supper.

a) As

b) When

c) While

6. ………………….. they were holidaying in Hawaii, burglars broke into their California home.

a) As

b) When

c) While

Answers

1. When she was younger, she used to spend a lot of money on cosmetics.

2. She published her first book when she was just sixteen.

3. As/when/while I was driving down the street, I saw a strange sight.

4. As/when I closed my eyes, I heard a strange noise.

5. Martin tidied the lounge, while I cooked supper. (To talk about two simultaneous long actions, we use while.)

6. As/when/while they were holidaying in Hawaii, burglars broke into their California home.

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