11. Yesterday Clouds (creep) ___________ across the horizon, just above the line of trees.

-> Crept

12. We both (sleep) ___________ badly that night.

-> slept

13. She (weep) ___________ for the loss of her mother.

->wept

14. Jane (keep) ___________ the engine running.

->kept

15. A huge wave (sweep) ___________ over the deck

->swept

16. Mum (pay) ___________ for my driving lessons.

-> paid

17. He (lay) ___________ his hand on my shoulder.

->laid

18. He (break) ___________ the biscuit in half and handed one piece to me.

-> broke

19. He (choose) ___________ his words carefully as he (speak) ___________.

-> chose - spoke

20. He .....................to the zoo last Sunday (go)

-> went

21. She (not/ watch)....................................TV last night

-> didn't watch

22. They (meet)..............................their friends at the movie theater last week

-> met

23. What...............you (do).....................last night

-> did- do

24. ........................... they (buy).....................a new car two days ago?

-> did - buy

25. We .............. (have) a lot of homework yesterday.

-> had

=> Quá khứ đơn:

(+) S + ved/ bất quy tắc 

(-) S + did not/ didn't + V nguyên thể
(?) did + S + V nguyên thể ?