---Look at these tracks. It _____ be a wolf.” ---Don’t be so sure. I think it _____ be a fox.
#87712
A
must; could
B
may; might
C
need; must
D
could; need
推荐题目
Thank you for all your hard work last week. I don’t think we _____ it without you.
#89107
A
can manage
B
could have managed
C
could manage
D
can have managed
All our teachers demand that we ___________.
#87507
A
worked hard
B
work hard
C
will work out
D
should be worked hard
一What if you_____ to send an essay with your application?一I would have been rejected．
#86671
A
forgot
B
would forget
C
had forgotten
D
should forget
—You _____ a meal this evening. I had dinner at a restaurant with Tom.—Well, why didn’t you phone me and let me know?
#88104
A
should not cook
B
don’t need to cook
C
needn’t have cooked
D
should have cooked
The manager proposed that Tom _________an opportunity to explain why he’d refused to go there.
#86418
A
was given
B
must give
C
should give
D
be given