4. didn't listen -Thì quá khứ đơn( DHNB là yesterday )

5. Did - they-Thì quá khứ đơn( DHNB là last summer )

6. didn't enjoy-Thì quá khứ đơn ( when she was seven là mốc thời gian trong quá khứ)

7. have-worked - Thì hiện tại hoàn thành( DHNB là 'in' )

4. He ____ ( not listen ) to music after school yesterday .
$\text{ ⇒ He didn't listen to music after school yesterday}$

5. _____ they _____ ( visit ) their grandparents last summer ? 
$\text{ ⇒ Did they visit their grandparents last summer ?}$

6. Sarah ____ ( not enjoy ) her piano lessons when she was seven .
$\text{ ⇒ Sarah didn't enjoy her piano lessons when she was seven.}$

7. Where ____ your father ____ ( work ) in 1985
$\text{ ⇒ Where was your father worked in 1985.}$

Cách làm : Past simple : thì quá khứ đơn 
Be : was / were
 (+) Afirmative (Câu khẳng định)

  Công thức : $\text{+ S + was / were + TT / ĐT}$

VD : She was a teacher
       My mother was tall
     We were at home yesterday.
$\text{ → I ; He ; She ; It + was}$
$\text{We ; You ; They + were.}$

(-) Câu phủ định (Negative)
Công thức : $\text{S + was / were + not + .....}$

(?) Interrogative (Câu hỏi)

Công thức : $\text{Was/ were + S + ....?}$

(?) Wh - Q (Câu hỏi có từ để hỏi)
Công thức : $\text{Wh + was/ were + S.....?}$
VD : Who was she ?

____________________________
Vthường : Ved / bqt

+ Câu khẳng định (..)
  Công thức : $\text{S + Ved}$
VD : I went go to school at 6 a.m yesterday.

-) Phủ định
Công thức : $\text{S + did + not + Vnguyên thể}$
VD : I didn't (did not) go to school at 6 a.m yesterday.

(?) Câu hỏi
Công thức : $\text{Did + S + Vnguyên thể.... ?}$

(?) Câu hỏi có từ để hỏi
$\text{Wh + did + S + Vnguyen thể....?}$
Dấu hiệu nhật biết:
$\text{- Yesterday ; last night ( week;....) ago (2 hours ago ; 2 years ago;.....}$
$\text{In + February, in 2021.}$

Gửi bạn !! Chúc bạn hc tốt !!!