time went on, the people in the area came to realize how serious the environment had been

发布时间：2020-08-16 10:16:31


    time went on, the people in the area came to realize how serious the environment had been polluted.
A. As
B. With
C. When
D. While

网友回答

(答案→)A. As
B. With
C. When
D. While
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