Don’t leave the tap running. Water needs so that it can be used by more people.A.to save B.to saved C.to be safe D.saving 题目和参考答案——青夏教育精英家教网—

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Don’t leave the tap running. Water needs so that it can be used by more people.

A.to save B.to saved C.to be safe D.saving

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A.to practice speaking B.practicing to speak

C.to practice to speak D.practicing speaking

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