1. 当你需要向别人询问你的书包在哪儿时，应说：

A. Where is my bag (书包)?
B. Where is it?
C. How many bags do you have?

2. 当别人问你东西在哪儿，而你不知道时，应说：

A. Sorry, I don't know!
B. Thanks!
C. There it is.