题目内容
—Must I finish my homework now, Mom?
—No, you _______.You can do it tomorrow.
A. can’t B. needn’t C. mustn’t
B
解析试题分析：must的含义是必须一定，其否定形式mustn’t表示禁止的含义。故must的否定回答一般借助于needn’和don’t have to来构成，句意:我今天必须完成我的作业吗?妈妈。根据前文No,可知下文为否定回答,故选B.
考点：must的用法
点评：must的否定形式是常考内容之一，结构比较固定，熟记即可。
----Must I hand in our homework today?
--- No, you ______.
| A．mustn’t | B．needn’t | C．can’t | D．shouldn’t |
---I don’t want to go to school on foot. What should I do?
---You try asking your father for a bike, or you can go by bus.
| A．have to | B．must | C．might | D．can’t |
---Must Jack come to sign his name on the paper?
---Yes, he_____ .
| A．need | B．must | C．may | D．will |
—Look! Is that Mr. Green?
—It be Mr. Green. He has gone to Shanghai.
| A．must | B．can | C．mustn’t | D．can’t |
— Must we get to the airport before 8 o’clock?
— No, you _____. The plane takes off at 12 o’clock.
| A．mustn’t | B．needn’t | C．wouldn’t | D．shouldn’t |
Sometimes smiles ______ be false, hiding other feelings like anger, fear or worry.
| A．must | B．can | C．should | D．would |
There are ________ people in the supermarket. It’s so crowded.
| A．hundred | B．hundreds | C．hundred of | D．hundreds of |