Choose the correct word to complete the sentences. Sometimes both are correct.

1. I rang my mum __________________ I was waiting for my train.
A) when
B) while
C) Both are correct

2. I’ll give them your message as soon as I __________________ there.
A) get
B) will get
C) Both are correct

3. Maria cleaned the kitchen __________________ I did the bathroom.
A) as
B) while
C) Both are correct

4. Before __________________ they went to an exhibition in a little gallery.
A) leave
B) leaving
C) Both are correct

5. We can have lunch __________________ we’ve finished this.
A) when
B) as soon as
C) Both are correct

6. The phone rang __________________ I was shutting the front door.
A) while
B) just as
C) Both are correct

7. We spent the morning in the park and __________________ we went home for lunch.
A) after that
B) afterwards
C) Both are correct

8. The letter arrived __________________ we were having lunch.
A) while
B) just as
C) Both are correct

9. I met the others __________________ I was on my way to the station.
A) when
B) as
C) Both are correct

10. After __________________ my room, I was exhausted.
A) to clean
B) cleaning
C) Both are correct