There are about two _________students in our grade.
— Are you going to Beijing for the summer holiday next week? — Yes. But I haven’t got the air tickets and don’t know we will set out.
— Do you know there is a Bank of China near here? — Yes. There is one at the end of this road.
— Can you guess the MP4 player yesterday? — Sorry,I’ve no idea about it.
—Do you know _____ ? I'm going to see him. —Sorry, I don't know.
Let’s ask Mr. Wang for ________ about the earthquake.