As mountains surrounding our village are turning much greener, they have become home to

As mountains surrounding our village are turning much greener, they have become home to a large number of wild animals.
A. the; /
B. the; a
C. /; a
D. the; the

(答案→)A. the; /B. the; aC. /; aD. the; the解析：A　句意：当我们村周围的群山变绿时，它们便成了很多野生动物的栖息地。根据句意可知，第一空后的mountains在本句中表示特指，故用定冠词，排除C项；be/become home to...为固定搭配，相当于be/become the home of...，意为“……的栖息地”。

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