1. we used to ( learn) ...... French when we were high school students 2. Before she went to the zoo, she ( visit)..... her friend 3. this hopital ( build) ..... since last year 4.While she (read)...... newpapers 5.These exercises(finish).......... by my students yesterday giúp em với ạ, em đang cần gấp ạ

`#Yaii `

`1. ` learn.

`@ ` used to V`: ` Đã thường làm gì.

`2. ` visited.

`@ ` Thì QKĐ.

`@ ` visit `-> ` visited `-> ` visited.

`@(+) ` S`+ `Ved`/ `pi`+ `O.

`3. ` has built.

`@ ` Thì HTHT `=> ` Signals`: ` since.

`@ ` build `-> ` built `-> ` built.

`@(+) ` S`+ `have`/ `has`+ `V`3+ `O.

`4. ` was reading.

`@ ` Thì QKTD `=> ` Signals`: ` while.

`@ ` S(s-it) `=> ` tobe`: ` is `-> ` was.

`@ ` be `-> ` was`/ `were `-> ` been.

`@(+) ` S`+ `was`/ `were`+ `V`- `ing`+ `O.

`5. ` were finished.

`@ ` Passive voice của thì QKĐ.

`@ ` Form`: ` S`+ `was`/ `were`+ `V`3+( `by O`) `

`@ ` S(s-nh) `=> ` tobe`: ` are `-> ` were.

Đáp án:

1. We used to learn French when we were high school students

-> used to + Vo : đã từng

2. Before she went to the zoo, she had visited her friend

-> Mệnh đề chứa “before” sẽ ở thì quá khứ đơn còn mệnh đề chính là thì quá khứ hoàn thành

3. This hopital has built since last year

-> Since là DHNB của Thì HTHT

4. While she was reading newpapers

-> While là DNHB Thì QKTD

5. These exercises were finished by my students yesterday

-> Bị động QKĐ: S + was/were + V3/ED + O

#Dương