You know he is not going to let us leave early if we ___ get the work done.
#90242
A
can't
B
may not
C
shouldn't
D
mustn't
推荐题目
 We        the manager , but no one        the telephone number .
#87851
A
could have called ; knew
B
could have called ; had known
C
could call ; had known
D
could call ; knew