Đáp án:

9. I used to go to bed very late but not anymore!

10. Which TV programme did you use to watch most when you were little?

Giải thích các bước giải:

Cấu trúc used to:

(+) S + used to + V(inf) + O.

E. g: She used to get up early. (Cô ấy thường dậy sớm.)

(-) S + didn't use to + V(inf) + O.

E. g: He didn't use to play football. (Anh ấy thường không chơi bóng đá.)

(?) (Wh-question) Did(n't) + S + use to + V(inf) + O?

- Yes, S + did.

- No, S + didn't.

E. g: Did Mary use to play piano? - Yes, she did. (Mary từng chơi piano phải không? - Đúng, cô ấy đã từng.)

9, I used to go to bed vere late but not anymore! 

10, Which TV programme you used to watch most when you were little?