Áp dụng công thức của S+used+ to V +...... (Diễn tả một hđ thường xuyên trg quá khứ ko còn ở hiện tại nữa)
1.l usually stayed up late to watch football matches last year.
l used to stay up late to watch football matches last year.
2.There were some trees in the field.
There used to be some trees in the field.
3. She doesn't live with her parents any more.
She used to live with her parents.
4. He is not a poor man any more.
He used to be a poor man, but now he becomes a rich businessman.
5. They didn't often go the cinema every Sunday last year.
They didn't use to go to the cinema every Sunday last year.
6. My hair now is much longer than that in the past.
ln the past may hair used to be shorter.
7. l don't have time to collect stamps as when l was in primary school.
l used to have much time to collect stamps when I was in primary school.
8. Did you often go to the beach when you lived in Nha Trang ?
Did you used(Câu này đầu bài sai vì Did you use sẽ chính xác vì Công thức: Did+S+V...)
Đúng hơn pk là: Did you use to go to the beach when you lived in Nha Trang?