— Mary’s sister looks very beautiful now.— But she was very ugly before she tidied up her appearance（整容）. You _________ believe it!
#87061
A
shouldn’t
B
mustn’t
C
wouldn’t
D
might not
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Since the road is wet this morning, _____ last night.
#90138
A
it must rain
B
it must be raining
C
it must have rained
D
it must have been rain
— Mary’s got mad and has been sent to the mental hospital. Did you tell her boss about that?— Yes, but I _____ her husband first.
#90104
A
should have told
B
shouldn’t have told
C
must have told
D
needn’t have told
The government requested that all the people ___________ in any indoor public area.
#87266
A
not to smoking
B
not smoke
C
not smoking
D
to not smoke
---- I can’t get through to the general manager’s office anyhow. ---- The line is busy. Someone ___________ the telephone.
#87229
A
can have used
B
can use
C
must have used
D
must be using
The scientists recommend that studies ________ to find out what side effects the medicine might cause.
#86353
A
be done
B
should do
C
will be done
D
are done