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一道高三英文选择题 pollution is the key to the country a comfortable
题目内容：
一道高三英文选择题
______pollution is the key to ____the country a comfortable and clean place to live in.
A.To control; keep B.To control;keeping C.Control;Keeping D.Controlling; keep.
我知道答案是B.
但是想问一下为什么是B以及其他选项为什么不对.谢谢高手指点.
一道高三英文选择题
______pollution is the key to ____the country a comfortable and clean place to live in.
A.To control; keep B.To control;keeping C.Control;Keeping D.Controlling; keep.
我知道答案是B.
但是想问一下为什么是B以及其他选项为什么不对.谢谢高手指点.
______pollution is the key to ____the country a comfortable and clean place to live in.
A.To control; keep B.To control;keeping C.Control;Keeping D.Controlling; keep.
我知道答案是B.
但是想问一下为什么是B以及其他选项为什么不对.谢谢高手指点.
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