難度：★    考點：情態動詞

　　1. _____exercise you take, _____you'll be.

　　A. The fewer, the fatter    B. The less, the fatter    C. The less, the more fatter

　　2. Lisa is a little poor at Chinese. I think she needs_____it every day.

　　A. practise to speak    B. to practise speaking    C. practise speaking

　　3. -Is that your teacher?

　　-That_____be Mr.Wang. He has gone to Japan with his wife.

　　A. can't    B. mustn't    C. may not

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