题目内容

How can I keep fit?You ___eat so much junk food.

A. mustn't
B. need't
C. couldn't
D. shouldn't

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Are you good at swimming?Sure. I live on the river side, I ___________ swim when I was only 5 years old.

A. should
B. could
C. might
D. may

___ I borrow your bike?Of course. Here is the key.

A. Must
B. May
C. Should
D. Could

How _____________ (may / can / shall) you make such success?By working hard .

A. May
B. Can
C. Shall
D. Should

What is she good at?She ___play tennis very well.

A. Can
B. May
C. Must
D. Should

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