—Thank you very much for giving me a hand when I was in trouble.
—Don’t mention it. I only did what anyone else in my place.
| A．must do | B．might do | C．would have done | D．can have done |
—There ______ be anybody in the classroom, for the lights are off.
—I’ll go and check.
| A．mustn’t | B．won’t | C．needn’t | D．can’t |
Chinese students usually spend ______ the students of the US studying in their free time.
| A．twice as many hours as | B．as twice many hours as |
| C．twice hours as many as | D．as many as twice hours |
. She has a strong belief that she will ______ her country to take part in the Olympic Games.
| A．present | B．preserve | C．represent | D．direct |
With all his efforts, ______ he made such great progress.
| A．no wonder | B．no doubt | C．no problem | D．no hurry |
______ is even more important is that water began to appear on the earth’s surface.
| A．Whether | B．That | C．What | D．Which |