Làm câu IV giúp mình vói ạ

`Đáp` `án:`

1. She used to be able to speak French, but she has forgotten it all.

2. Did he use to pla y golf every weekend? 

3. They both used to have short hair. 

4. Julie used to study Portuguese. 

5. I didn't use to hate school.

--------------------------------------

used to: đã từng (không còn ở hiện tại)

(+) S + used to + V1 

(-) S + didn't use to + V1 

(?) Did + S+ use to + V1?