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, …

——————————————-

1. took

DHNB: last week

2. arrived / weren’t 

there were + many + N số nhiều 

3. said / bought 

4. taught 

DHNB: last summer

5. started / was

6. donated 

7. rang / invited

DHNB: yesterday 

8. did you watch 

DHNB: last night

9. was / used to 

10. Did you go 

DHNB: yesterday

11. wasn’t / didn’t feed

12. spent 

13. wrote / didn’t write 

14. Were they

15. saw

DHNB: yesterday

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