Đề y/c chia qkd 

`2` didn't wear

`3` left

leave `->` left

`4` did you write

`5` did they teacher say

`6` You didn't tell

`7` Did you go

`8` didn't know

`9` did you take

`10` Jane didn't get

`=>` Công thức quá khứ đơn

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

`(-)` S + didn't + V_inf + .....

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

`DHNB` 

`+)` yesterday

`+)` last night

`+)` last week

`+)` this morning

`+)` this afternoon

$\text{→ Thì quá khứ đơn sẽ có dạng như sau : }$

$\text{⇒ Công thức thì QKĐ với động từ thường :}$

$\text{( + ) S + V_ed \ 2 + O + time}$

$\text{( - ) S + didn't + V_inf + O + time}$

$\text{( ? ) Did + S + V_inf + O + time ?}$

$\text{⇒ Công thức thì QKĐ với động từ tobe: }$

$\text{( + ) S + was \ were + O + time }$

$\text{( - ) S + was \ were + not + O + time}$

$\text{( ? ) Was \were + S + O + time ? }$

$\text{→ Dấu hiệu nhận biết thì QKĐ sẽ gồm có như sau: }$

$\text{⇒ yesterday }$

$\text{⇒ ago }$

$\text{⇒ last ( week ,.....)}$

$\text{⇒ in + time ( in the past) }$

$\text{⇒ the day before }$

$\text{⇒ today}$

$\text{⇒ this afternoon, this morning }$

$\text{2 didn't wear}$ 

$\text{3 left}$  

$\text{4 Did you write}$  

$\text{5 Did the teacher say}$  

$\text{6 You didn't tell}$  

$\text{7 Did you go}$  

$\text{8 didn't know}$  

$\text{9 did you take}$  

$\text{10 Jane didn't get}$  

$\text{Học tốt!!!}$