$\color{lightblue}{\text{#HQuan}}$ $\color{Pink}{\text{ - Nợn }}$

`1`.Stayed.

`2`.didn't go.

`3`.had.

`4`.was.

`5`.visited.

`6`.Were your parents.

`7`.bought.

`8`.saw.

`9`.Did Trung eat.

`10`.talked.

`11`.returned.

`12`.thoght.

`13`.went.

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`@` Cấu trúc ở TQKĐ vs đt thường : 

`(+)` S + V_ed/V2.

`(-)` S + did not + V.

`(?)` Did + S + V?

`@` Cấu trúc ở TQKĐ vs đt tobe : 

`(+)` S + was/were + ....

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

`(?)` Was/Were + S +....?

`-` DHNB : Ago,last + time,yesterday,...

1. stayed

2. didn't go

3. had

4. was

5. visited

6. were

7. bought

8. saw

9. Did...eat

10. talked

11. Did...return

12. thought

13. went

`->` Cấu trúc thì Quá Khứ Đơn:

  `@` Với tobe:

`( + )` S `+` was/were `+` O .

`( - )` S `+` was/were `+` not `+` O .

`(  ?  )` Was/were `+` S `+` O ?

  `@` Với V thường:

`( + )` S `+` Ved/p1 `+` O .

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

`(  ?  )` Did `+` S `+` V `+` O ?