1. 选出下列句子的正确答语

A. There are five girls. B. Yes, I am. C. They are running. D. Yes, she is . E. No, they aren't

1. （1） Are they doing the high jump , too?
3. （2） Is she a runner?
5. （3） What are they doing?
7. （4） Are you watching the high jump?
9. （5） How many girls are there?