1/ HE is not a poor man any more ,but he become a rich businessman.

-He used to be a poor man , but now he is a rich businessman

2/They didn't often

-They didn't use to  go to the cinema every Sunday last year

3/ My hair now is much longer than that in the past

-In the past my hair used  to be short

4/ I don't have time to collect stamp as when I was in primary school

-I used to collect stamp when I was in primary school

chuc bn hoc tot^^

1. He used to a poor man, but now he is a rich businessman.
2. They didn't use to go to the cinema every Sunday last year.

3. In the past my hair used to be much shorter than now.

4. I used not to collect stamp when I was in primary school.