．—What’s the matter with the man hanging his head there? —Well, if you _______ know, he was caught stealing my bike.
#88321
A
must
B
may
C
can
D
shall
推荐题目
I wrote a letter to John for his help during my high school years，without which I ________ the college entrance exam.
#86497
A
would fail
B
would have failed
C
should fail
D
must have failed
This cake is very sweet．You __________ a lot of sugar in it．
#87614
A
should put
B
could have put
C
might put
D
must have put
—— It is rather cold here. Shall we light a fire? —— No, we＿＿＿＿＿＿because things are easy to catch fire.
#89960
A
won’t
B
can’t
C
mustn’t
D
needn’t
It is usually warm in my hometown in March, but it _____ be rather cold sometimes.
#89105
A
must
B
can
C
should
D
would
It is usually warm in Autumn here. But it _____ be freezing sometimes.
#87981
A
will
B
should
C
may
D
can