is a good idea your English by reading aloud in the morning.A. This; improve B. This; to improveC. It; improve D. It; to improve 题目和参考答案——青夏教育精英家教网—

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10. _______ is a good idea__________ your English by reading aloud in the morning.

A. This; improve B. This; to improve

C. It; improve D. It; to improve

10. D考查动词不定式作主语的用法。动词不定式作主语时，常常用it作形式主语放在句子开头，而动词不定式放在后面。故选D。

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2. A. another B. other C. others D. the other

3. A. who B. which C. how D. where

4. A. pollutes B. polluted C. polluting D. is polluted

5. A. When B. Whether C. Why D. If

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