How ______ you say that you really understand the whole story if you have covered only part of the article ?
#89269
A
can
B
must
C
need
D
may
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But for her help,we       the task in time.
#87993
A
will not finish
B
had not finished
C
can not finish
D
could not have finished
Jack _______ yet last night, otherwise he _______ me.
#89893
A
mustn’t have arrived; must have phoned
B
can’t have arrived; would have phoned
C
may have arrived; need have phoned
D
shouldn’t have arrived; can have phoned