$\text{@ X U}$

Answer :

$12) $ wear `->` wore
$13) $ be `->` was

$14) $ go `->` went

$15) $ be `->` was đưa lên đầu câu ; be `->` was ở cuối câu

$16) $ did lên trước he ; go giữ nguyên

$17) $ be `->` was

$18) $ not come `->` didn't come

$19) $ be `->` were

$20) $ wash `->` washed

$21) $ did lên trước you ; leave giữ nguyên

Các câu trên đều thuộc câu quá khứ đơn

`@` Cấu trúc :

`-` Động từ thường :

$(+) S + V2/ed + O$

$(-) S + did not + V_inf + O$

$(?) Did + S + V_inf + O$

`-` Động từ tobe :

$(+) S + was/were + O$

$(-) S + was/were not + O$

$(?) Was/were + S O$

`-` Dấu hiệu nhận biết :

`+` yesterday ; last night ; last week ; ago ; last month ; .......

`# Blackpink`

12. wore 
13. was

14. went

15. Was Tam at home last night?  - was

16. Where did he go yesterday? 

17. was

18. did you come

19. were

20. buys

21. did you leave 

Cấu trúc: Quá Khứ Đơn
Động từ thường: 
(+) S + V2/ed + O
(-) S + did not + V_inf + O
(?)  Did + S + V_inf + O ?
Động từ tobe:
(+) S + was/were + O
(-) S + were/was not + O
(?) Was/were + S + O?
Dấu hiệu nhận biết:
last night/ last week/ last month/year, yesterday, ago,…