What can we students do _____ the environment?A．to protectB．protectedC．protectin
题型：不详难度：来源：
What can we students do _____ the environment?| A．to protect | B．protected | C．protecting | D．protects |
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答案
| A |
解析
试题分析：句意：为了保护环境，我们学生能做些什么？不定式表示具体的将要发生的动作，保护环境是还未发生的动作故用不定式。选A。
点评：不定式表示具体的将要发生的动作，过去分词表示被动的发生过的动作，现在分词表示正在进行的动作。 |
举一反三
Teachers’ job is ______ the students learn well.| A．helping | B．help | C．to help | D．helped |
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When you read English, translate every word into Chinese.| A．try not to | B．try to | C．don’t try | D．not try |
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I find it very hard the question.| A．to answer | B．answers | C．answering | D．answered |
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My parents told me try ______on Christmas Eve because Santa Clause may come and send me some gifts.| A．not to sleep | B．don"t sleep | C．not sleep | D．to not sleep |
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—Good idea.| A．How about | B．Why not | C．Would we like | D．Let’s |
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