He cleaned the glasses carefully for fear that it ________.

1. A.
   was damaged
2. B.
   should be damaged
3. C.
   damaged
4. D.
   would be damaged

He cleaned the glasses carefully for fear that it ________.

[　　]

The room needs to be cleaned once ______.

1. A.
   two weeks
2. B.
   every two weeks
3. C.
   twice weeks
4. D.
   in two weeks

The room needs to be cleaned once ______.

[　　]

A．two weeks　　　　B．every two weeks

C．twice weeks　　　D．in two weeks

Glass milk bottles can be used again and again, but they need __________ thoroughly, ____they?

      A. to clean, needn’t         B. cleaning, don’t      C. clean, aren’t       D. cleaned, can’t