---Someone is knocking at the door. Who may it be? ---It ______ be Tom. He is still in the school.
#74601
A
can’t
B
mustn’t
C
couldn’t
D
may not
推荐题目
-- Can I tell Peter about the news?-- No, I don’t want anyone else to know it. You ________ keep it to yourself.
#78287
A
must
B
need
C
can
D
may
––__________ I smoke here?–– No, you __________.
#77064
A
Must; can’t
B
Do; can’t
C
Can; can’t
D
Can; don’t
It is usually warm in my hometown in April, but it ________ be rather cold sometimes.
#63060
A
can
B
must
C
would
D
should
