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题型：单选题题类：模拟题难易度：普通

—What should we do to prevent H7N9 bird flu?
—We must from crowded places.

A、come out B、pass away C、put out D、keep away

举一反三

We should think of others if we want to ________them.

As a kind of important energy, coal(煤炭) can _______ one day.

You have to run faster．Come on．I'm sure you can other students．

Mrs. Green didn't talk to her husband for a long time, but now they ____ each other.

Please peel the bananas and ．

The dress is so expensive. I'll ______________ it.

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