john has played football since he finishes his lesson Tìm lỗi sai

2 câu trả lời

John has played football since he finishes his lesson.

Sửa: Finishes $\longrightarrow$ Finished

Giải thích: Cấu trúc since thì hiện tại hoàn thành:

$\text{S + present perfect + since + past simple}$.

`->` Đáp án: finishes

`-` finishes `->` finished

`-` Cấu trúc: present perfect + since + past simple  

`-` Cấu trúc thì QKĐ

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

`(-)` S + didn't + V1 + O

`(?)` Did + S + V1..?

`->` Yes, S + did

`->` No, S + didn't

`-` finish - finished - finished