Cars play an important role in modern life, but they ______ also cause many problems like air pollution.
#63554
A
should
B
can
C
must
D
will
推荐题目
--Have you decided where to go for your summer vacation? --Not yet. We_________ go to Mount Lu. It is a good place for vacation.
#76514
A
may
B
should
C
need
D
must
–Can I get out at noon?--No. Our school rules state that no student ____ be allowed out at noon, unless he has a request form.
#62565
A
shall
B
will
C
must
D
can
---Will you read me a story, Mummy? --- OK. You_______have one if you go to bed as soon as possible.
#63399
A
might
B
must
C
could
D
shall
–I have packed your luggage for you need to rise early tomorrow. --Thanks. You ______ that. I am a big girl now and I can manage it, Mum.
#62529
A
needn’t do
B
needn’t have done
C
mustn’t do
D
shouldn’t have done