—I’m afraid that I can’t do it.—Oh, you should believe in yourself. You won’t know what you can do______ you try it.

 I am a student ________ I am Chinese. 

We just need one of you for the game.youyour brother can join us.

 Mike is good at playing basketball ______Bruce does well in football .

 —Mark, where do you work?            —I work in a company        sells cars.