---Do you know the man      is sitting behind Nancy?---Oh, he’s my Chinese teacher, Mr Zhou．

—Look at the girl with a pair of glasses over there. Can you tell me ______?—She is a nurse.

 ---Be careful. You might fall into the river.---Thank you. I ________ I ________ so close to it．

I hope_________ your homework carefully.

We don’t doubt______ he can do a good job of it.