1. A

2. B

3. B

4. A

5. C

6. B

Nội dung cần nhớ:

- Would + V-inf = Used to + V-inf→→Chỉ thói quen trong quá khứ.

- Cấu trúc của "used to":

   (+) S + used to + V-inf.

   (-) S + didn't use to/ never used to + V-inf.

   (?) Did + S + use to + V-inf?

1. I practise the guitar every day , but I __________ 

A. didn't use to

B. wouldn't 

C. used to 

2. joe hates eggs , but he ___________ them . 

A. would like 

B. used to like

C. didn't like 

3. When ELsie was young , she ___________ ballet lessons twice a week for ten years . 

A. 'd go to 

B. used to go to 

C. went to 

4. I don't let my dog in my room now because it ________ stop jumping on my bed .

A. would't 

B. didn't use to

C. would 

5. My neighbour _________ Adele's piano teacher .

A. 'd be 

B. would be

C. used to be 

6. I love Mr Bean now , but I _______ him funny.

A. would't find 

B. never used to find 

C. didn't find 

Giải thích : 

Would + V_inf = used to + V_inf

⇒ chỉ thói quen trong quá khứ . 

Cấu trúc của ''used to''

(+ ) S + used to + V_inf

( - ) S + didn't used to / never used to + V_inf

( ? ) Did + S + use to + V_inf ?