1/enjoy (used+to+v)

2/was giving (thì QKTD S+WERE/WAS+V-ing )/(stopped (thì QKD S+V-ed)

3/were you spending (như câu 2 ở dạng câu hỏi WAS/WERE+S+V-ing)

4/was raining/came (như câu 2)

5/was playing (thì qktd S+WAS/WERE+V-ing)

6/weren't letting (như câu 5)

7/were making/didn't hear (như câu2)

8/decided/were shopping (thì QKD S+V-ed/thì QKTD S+WERE/WAS+V-ing)

1. when I was in primary school: khi tôi vẫn ở trường tiểu học -> thì quá khứ đơn

=> Khoanh "used to enjoy"

2. He was giving a presentation in the communication skills class when the computer stopped working.

3. Did you spend a lot of money when you were on holiday last year?

4. It was raining when we left the house but later the sun came out.

5. I was playing on my phone when I received a text.

6. My parents didn't use to let me go out on school days.

7. The children were making so much noise in the playground that they didn't hear the bell.

8. We were deciding to have a cup of coffee while we were shopping in the city centre.