---Shall I sit at this end of the boat, or that end?

         ---You may sit at ___ end if you keep still.

          A.any      B.both      C. each       D.either

We expected 50 people to take part, but the_____number was a lot higher.

A. average   B. correct     C. usual     D. actual

The house won’t certainly sell ____ the fact that it’s overpriced.

  A. in spite of     B. because of      C. in addition to     D. but for

What was the critic's ______ to the novel?

    A.comment        B. impression       C.comprehension    D. reaction

___ may be chosen.

        A.Any one of the horse.          B.Any one of the horses 

C. Anyone of the horse           D. Anyone of the horses

Everyone has periods in their lives __________ everything seems very hard.

A. when              B. where             C. which                D. that

Everyone _____ do his best for the modernizations of our country.

A. can           B. may           C. should        D. might

–What’s that noise?

–Oh, I forgot to tell you. The new machine ______.

A. was tested   B. will be tested   C. is being tested   D. has been tested

—Why hasn’t the speaker turned up?

—He _________ the flight. I’ll find it out at once.

A. must have missed                           B. might have missed

C. would have missed                         D. could have missed

—Is there any flight to Tokyo today?

— I think there _____, for the weather is too bad.

A. mustn’t be       B. mightn’t be       C. needn’t be       D. can’t be