—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
#88027
A
can; must
B
can; may
C
must; can
D
may; must
推荐题目
—But for your timely warning, we _________ into great trouble. —Well, you know we’re friends.
#87527
A
would get
B
must have got
C
would have got
D
can have got
--- I didn’t tell my parents the secret yesterday. --- But you ______.
#87697
A
ought to do
B
ought to
C
should
D
ought to have
Sir, you ______be sitting in this waiting room. It is for women and children only.
#89348
A
mustn’t
B
can’t
C
won’t
D
needn’t
The sleeping baby would be scared _______ a sudden loud noise.
#86894
A
was there
B
there was
C
should there be
D
there should be