---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
We were delayed at the airport．Otherwise，we here by lunch．
#86444
A
must have been
B
could be
C
should be
D
would have been
But for the help of my English teacher, I the first prize in the English Writing Competition.
#90490
A
would not win
B
would not have won
C
would win
D
would have won
He ________ the window of our classroom yesterday because he didn’t come to school．
#88280
A
mustn’t have broken
B
mightn’t have broken
C
shouldn’t have broken
D
couldn’t have broken
—Would you mind if I set out earlier tomorrow morning? — Well, I’d rather you _______.
#86711
A
don’t
B
didn’t
C
won’t
D
wouldn’t