1. Did you use to enjoy Maths at school?

2. I didn't use to like flying, but I love it now.

3. We used to be friends, but we don't get on now

4. Did John use to work for IBM before he came here?

5. Winters didn't used to be as cold as they are now.

6. She used to live with her mother, but now she lives with her father.

7. I didn't used to do any exercise.

8. Did he use to play for Manchester United?

$\text{Công Thức:}$

$\text{Khẳng định (+):}$

$\longrightarrow$ $\text{S + used to + V}$

$\text{Phủ định (-):}$

$\longrightarrow$ $\text{S + did not + use to + V}$

$\text{Nghi vấn (?):}$

$\longrightarrow$ $\text{Did + S + use to + V}$

#chucbanhoctot

$\textit{@quynhnhuu1707}$