1. I played computer games all day yester day

2. Have your friend waited for you all that time?

3. Sid didn't clean his room at `8.` pm last night

4. We were having dinner when Tim arrived

5. Sarah and Luke weren't surfing the Internet at the time

6. What was Jack doing while you were cooking dinner?

7. This time last week, my family was visiting my grandmother

8. It wasn't snowing when I left

9. Were you sleeping when I phoned you last nighr=t?

10. While the children were talking, the teacher came into class.

Đáp án:

1, I played computer games all day yesterday.

2, Have your friend waited for you all the time ?

3, She didn't clean his room at 8 p.m last night.

4, We were having dinner when Tim arrived.

5, Sarah and Luke weren't surfing the Internet at the time.

6, What was Jack doing while you cooked dinner ?

7, This time last week, my family was visiting my grandmother.

8, It wasn't snowing when I left.

9, Were you sleeping when I phoned you last night ?

10, While the children were talking, the teacher came into class.