Look at the red walk sign．We cross the road when we see it．It's too dangerous．( )A．canB．mustC．mustn't 题目和参考答案——青夏教育精英家教网—

题目内容

20．Look at the red walk sign．We _______cross the road when we see it．It's too dangerous．（　　）

A．

can

B．

must

C．

mustn't

分析看这个红色的步行标志．当我们看到它的时候绝不可以穿过马路．太危险了．

解答答案：C．can能，会；must一定，必须；mustn't不可以．根据It's too dangerous，可知看到红色的步行标志时过马路太危险了，所以我们不可以过马路．mustn't不可以．故选C．

点评本题考查了情态动词的用法．解答时注意理解句意以及所给选项的意思并作出正确选择．

练习册系列答案

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