Who is running on the sports field?-It be David.He is ill at home．( )A．can'tB．mustn'tC．may notD．shouldn't 题目和参考答案——青夏教育精英家教网——

题目内容

15．Who is running on the sports field？
-It be David，He is ill at home．（　　）

A．

can't

B．

mustn't

C．

may not

D．

shouldn't

分析 --谁在操场上跑步呢？
--不可能是David，他生病在家呢．

解答答案：A．can't 不可能；mustn't 禁止，不要；must一定，必须；shouldn't不应该．根据句中He is ill at home可知，David生病了，所以跑步的不可能是他，故选A．

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．

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