1. 给下列问句选择合适的答语。

A. I played basketball.                B. Yes，it is. C. No，she didn't.                  D. They are my grandparents. E. Yes，he did.

1. （1） Who are they?
3. （2） What did you do yesterday?
5. （3） Did your grandpa learn English?
7. （4） Is this your brother?
9. （5） Did she make a cake yesterday?