rivers and lakes have caused many fish . [ ] A．Have been polluted; die away B．Being polluted; die out C．Polluted; to die away D．Polluted; dying out 题目和参考答案——青夏教育精英家教网—

题目内容

________ rivers and lakes have caused many fish ________.

[　　]

A．Have been polluted; die away

B．Being polluted; die out

C．Polluted; to die away

D．Polluted; dying out

答案：
解析：

句子的意思是“受到污染了的河流与湖泊已经引起许多鱼的绝迹。”第二空为句型cause...to迹do...。

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