It is usually not quite cold in this area in March, but sometimes temperature ____be very low.
#89453
A
should
B
can
C
must
D
shall
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Without your help, I ____the exam last term. 
#89943
A
failed in
B
would have failed
C
wouldn’t pass
D
would fail
There was plenty of time. She ______ .
#87490
A
mustn’t have hurried
B
couldn’t have hurried
C
must not hurry
D
needn’t have hurried.
Please open the window, _____?
#90215
A
can’t you
B
aren’t you
C
do you
D
will you