问题描述：
because of air pollution being greatly reduced,this city is still
A.a good place which to be lived in
B.lived as a good place
C.a good place to live(要live in,我知道)
D.living in as a good place
A.a good place which to be lived in
B.lived as a good place
C.a good place to live(要live in,我知道)
D.living in as a good place
问题解答：
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