当你问你的同学他是谁,应该说:A.Who is he?B.Who is she?C.Who are you ?
I'm eleven years old. And my little brother is eight. So .
A:What Jane ? B:She's writing an e-mail to her penfriend.
I'd like Helen soon.
Who’s the lady ______ blue ?
The man ______ a book in his hand is my uncle.