—Your classroom is so clean.
—Of course. It ______ every day.
A. is cleaned B. was cleaned
C. cleans D. cleaned
—Is Mr Brown driving here?
—I’m not sure. He ______ come by train.
A. may B. shall C. need D. must
— Could you tell me______?
— At nine o’clock, in ten minutes.
A. how will he leave B. when he has left
C. why he is leaving D. when he will leave
— Would you like some tea?
—______.
A. Yes, please B. The same to you
C. Me, too D. My pleasure
—______ can you finish your homework?
—In about an hour.
A. How long B. How soon C. How often D. How far
Driving in the mountains can be very dangerous. You can’t be ______careful.
A. so B. very C. much D. too
