Why ____it  get  colder  when  we  go up a mountain ?We are  getting  nearer  to  the  sun !
#89829
A
ought to
B
would
C
should
D
must
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You__     to the meeting this afternoon if you have something important to do . 
#88067
A
needn’t to come
B
don’t need come
C
don’t need coming
D
needn’t come
He insisted that the doctor         at once.
#87139
A
be sent for
B
was sent for
C
was going to be sent for
D
must be sent for