用括号内所给动词的适当形式填空。1. If you _________ (not be) careful enough when crossing the road, a car may hit you. 2. By the time he got home, his wife _

◎ 题干

用括号内所给动词的适当形式填空。

1. If you _________ (not be) careful enough when crossing the road, a car may hit you.
2. By the time he got home, his wife _________ (do) all the housework.
3. In the United States, lunch _________ (offer) to students for free at school.
4. The first step towards _________ (protect) the environment is to live a "low-carbon" lifestyle.
5. The day all the American basketball fans looked forward to _________ (come) at last.
6. While I _________ (sweep) the floor yesterday, the telephone rang.
7. Jack told me that they _________ to the USA from Shanghai by the end of next November. (return)
8. The disabled mustn't _________ (laugh) at by anybody.
9. The audience are required _________ (show) their tickets when they enter the cinema.
10. They _________ (eat) up all the food, but they still feel hungry.

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◎ 解析

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◎ 知识点

根据n多题专家分析，试题“用括号内所给动词的适当形式填空。1. If you _________ (not be) careful enough when crossing the road, a car may hit you. 2. By the time he got home, his wife __…”主要考查了你对【实义动词的过去式】，【被动语态】，【不定式】，【动名词】，【过去进行时】，【现在完成时】，【过去完成时】，【过去将来时】，【状语从句】等知识点的理解和应用能力。关于这些知识点的“档案”，你可以点击相应的链接进行查看和学习。

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