Giúp ah......camon trc

Quá khứ đơn

Động từ TO BE:Công thức: S + was/ were + O

Động từ thường: Công thức: S + V-ed/ V_{QK (bất quy tắc)} + O

Quá khứ tiếp diễn

S + was/were + V-ing (+ O)

1. broke - was driving

2. was looking - saw

3. saw - fell

4. was trying - stopped

5. was jim smoking - turned

6. was - slept

7. was running - was having

8. phoned - has slept

9. asked - released

10. was surfing - found

11. was walking - heard

12. were - went

13. did you go - took