这是到题怎样做?(>_

这是到题怎样做?(>_
这是到题怎样做?(>_

这是到题怎样做?(>_
1.What did mike use to do when he was a little boy.
2.Did your sister use to play volleyball in the park?-Yes,she did./-No,she didn't.
3.The Blacks didn't use to climb hills at weekends.