He ____ have finished his work; Otherwise, he would.not be enjoying himself by the seaside.
#87877
A
should
B
must
C
couldn’t
D
can’t
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 There was plenty of times. She _____.
#90219
A
mustn’t have hurried
B
couldn’t have hurried
C
must not hurry
D
needn’t have hurried
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
It is essential that these application forms ______ back as early as possible.
#87599
A
must be sent
B
will be sent
C
are sent
D
be sent