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科目: 来源: 题型:022

(完成单词)It's n______ to protect our earth right now.

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科目: 来源: 题型:022

(完成单词)Don't do h______ to the environment.

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科目: 来源: 题型:022

(完成单词)We should buy p______ made in China.

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科目: 来源: 题型:022

(完成单词)Do you know the d______ between the Internet and the World Wide Web?

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科目: 来源: 题型:022

(完成单词)We should r______ waste and save energy.

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科目: 来源: 题型:022

(完成单词)It is h______,although we do something to make it better.

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科目: 来源: 题型:022

(完成单词)Now it gets warmer and warmer because the p______ is getting more seri-ous.

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科目: 来源: 题型:022

(完成单词)Don't throw away! It can be r______.

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科目: 来源: 题型:022

(完成单词)Heat is a form(形式)of e______.

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科目: 来源: 题型:022

You should look after the books well. (改为同义句)

  You should ______ ______ ______ ______ the books.

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