1. 给下列句子选择合适的答语

A. It's in the east of America. B. Beijing has got about twenty million people. C. It's in the east of China. D. Yes, it is. E. It's about two thousand kilometres long.

1. （1） How long is it?
3. （2） How big is Beijing?
5. （3） Is it in your town?
7. （4） Where's Shanghai?
9. （5） Where's New York?