—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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But for their help, we ______ the program in time.
#87442
A
can not finish
B
will not finish
C
had not finished
D
could not have finished
They received demands that the work ________ at once.
#86906
A
must be done
B
would be done
C
had been done
D
be done