How often does the train run to Beijing —– ________ twenty minutes.

Do you think you can finish the project by five o’clock this afternoon —_______. I’ll be busy with my term paper all day.

一 I’d like to go home now 一 Why not stay here for the night? It is so late now___,it is raining

Some of the _______suspects refused to answer and kept their mouths shut.

On the day I was to take the driving test, so ______ was I that I could not understand what I was