You ______ wear sports shoes when you climb a mountain.
A．can’tB．shouldn’tC．mustn’tD．have to
It’s nothing serious. You’ve just caught.          a cold.
A．a bitB．a bit ofC．a littleD．a little of
Tom has grown      enough to take care of      .
A．tall; himB．tall; himself
C．old; himD．old; himself
—How many students are there in your school?
—      the students in our school      over two thousand.
A．The number of; isB．The number of; are
C．A number of; isD．A number of; are
—Must I go with them tomorrow?
—No, you    .
A. mustn’t     B, shouldn’t   C. needn’t      D. can’t
If prices rise too high, the government has to do something _________ it.
A．stopB．stoppedC．stoppingD．to stop
If you are in the zoo, remember not to touch or go near the animals. Although some of the animals are cute, you _________ leave them alone.
A．mustB．willC．mayD．can
—______ is “CHINA NEWS” shown on CCTV-4? —Every day.
A．How oftenB．How many timesC．How longD．How soon
—I can’t stop smoking, doctor.   — For your health, I’m afraid you ______.
A．mayB．canC．have toD．need
You          worry about me. I’m fine.
A. can’t                 B. mustn’t              C. needn’t
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