---Must I work out the problem right now?---Yes, you _______. It’s very serious.
#75573
A
can
B
must
C
may
D
should
推荐题目
In China's countryside, villagers often have the same family name, but ________ not be closely related.
#62201
A
need
B
shall
C
must
D
may
You ______ to the meeting this afternoon if you have something important to do.
#76592
A
needn’t to come
B
don’t need come
C
don’t need coming
D
needn’t come
Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dangerous.
#74948
A
mustn’t
B
ought not to
C
needn’t
D
don’t have to
－What is your math teacher like, Nick?－She is very kind _________ she looks a little serious.
#77143
A
although
B
if
C
so
D
until