1. spent / was
- Thì QKĐ : S + Ved/Vpp
- Dấu hiệu : last years
- Thì QKĐ dạng tobe : S + was/were + O
2. visited
- Thì QKĐ : S + Ved/Vpp
- Dấu hiệu : three weeks ago
3. weren't
- Thì QKĐ dạng tobe : S + was/were + O
- Dấu hiệu : last sunday
4. didn't rain
- Thì QKĐ : S + Ved/Vpp
- Dấu hiệu : yesterday
5. did lan spend
- Thì QKĐ : S + Ved/Vpp
- Dấu hiệu : last holiday
6. went
- Thì QKĐ : S + Ved/Vpp
- Dấu hiệu : when he was young
7. was
- Thì QKĐ dạng tobe : S + was/were + O
- Dấu hiệu : yesterday
→ I,he,she,it + was
→ you,we,they + were