—Mary broke up with me!—You _____ have forgotten about the Valentine's Day.
#86967
A
shouldn't
B
couldn't
C
needn't
D
mustn't
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Something ___ to save our earth. Do you think so?
#88938
A
can do
B
must do
C
has to do
D
must be done
--I stayed at a hotel while in New York.  ---Oh, did you? You ___ with Babara.
#89408
A
could you stayed
B
could stay
C
would stay
D
must have stayed
It was announced that only when the examination papers were handed in ________to go out of the classroom.
#87791
A
the students would be permitted
B
had the students been permitted
C
would the students be permitted
D
the students had been permitted
_____ my advice, you would not be in such a terrible situation now.
#87660
A
Had you taken
B
If you take
C
Should you take
D
If you have taken