问题描述：
17.Because air pollution has been greatly reduced,this city is still _______.
A.a good place to live B.a good place for living in
C.a good place to live in D.a good place to be lived in
理由。为什么b不对
A.a good place to live B.a good place for living in
C.a good place to live in D.a good place to be lived in
理由。为什么b不对
问题解答：
我来补答展开全文阅读