Great efforts to increase grain production       if food shortages are to be avoided.
#88013
A
could be made
B
must be made
C
might be made
D
would be made
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I supported him in time , otherwise he         off the bike .
#88986
A
might fall
B
would fall
C
should have fallen
D
would have fallen
The door_________. Better have it repaired .
#89303
A
isn’t shut
B
hasn’t been shut
C
won’t be shut
D
won’t shut
The rules require that ______you only one guest to the dinner. But they requires______ 
#90292
A
will bring; reforming
B
should bring; to reform
C
bring; reforming
D
have brought; to be reformed