75% of the students ______that the number of private cars _______ increasing rapidly.

  A. agree; are      B. agrees; is         C. agrees; are        D. agree; is

75% of the students ______that the number of private cars _______ increasing rapidly.

1. A.
   agree; are
2. B.
   agrees; is
3. C.
   agrees; are
4. D.
   agree; is

 (    )75. --Must I clean the room now? --No, you __________.

           A. can' t         B. may not        C. mustn' t        D. needn' t

 (    )75. -- Oh, no, we've missed the 8 o'clock train!

          --________ . There's another one in half an hour.

   A. You're right   B. That's all right   C. You're welcome  D.Don' t worry