Use the correct form of verbs in brackets, using the past simple or past continuous

` 21`. stopped

` 22`. was reading/was playing

` 23`. Did/go/went/didn't enjoy 

` 24`. forgot

` 25`. stole

` 26`. was sitting/fell

` 27`. were doing/came

` 28`. arrived/was still sleeping

` 29`. were playing/was writing

` 30`. Was he studying

` --------` 

` @` Quá khứ đơn

` (+)` S + V-ed/V2 + ...

` (-)` S + didn't + V-inf + ...

` (?)` Did + S + V-inf + ...?

` @` Quá khứ tiếp diễn

` (+)` S + was/were + V-ing + ....

` (-)` S + was/were + not + V-ing + ...

` (?)` Was/were + S + V-ing + ...?

Công thức thì QKTD 

(+) S + was/were + Ving 

(-) S + was/were+ not + Ving 

(?) Was/Were +S +Ving? 

--> Diễn tả hành động đang xảy ra ở 1 thời điểm nào đó trong quá khứ 

--> Diễn tả hành động đang xảy ra thì có hành động khác chen vào (while / when)

DHNB: at + giờ + thời gian trong QK, at this time + thời gian trong QK, ...

Công thức thì QKĐ (V: to be)

(+) S + was/were + ... 

(-) S + was/were + not ... 

(?) Was/Were + S ... ? 

S số ít, I, he, she, it + was

S số nhiều, you, we ,they + were

Công thức thì QKĐ (V: thường)

(+) S + V2/ed 

(-) S + didn't + V1 

(?) Did + S+ V1?

DHNB: ago, last (year, month ...), yesterday, in + năm QK, ...

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21. stopped 

22. was reading / was playing 

23. Did/ go / went / didn't enjoy 

24. forgot 

25. stole 

26. was sitting / fell down 

27. were doing / came in 

28. arrived / was still sleeping 

29. were playing / was writing 

30. Was he studying 

`color{orange}{~MiaMB~}`