( )A good way was thought______the problem of pollution.A.of solv_英语解答

( )A good way was thought______the problem of pollution.
A.of solving B.to slove C.of to solve D.solving

人气：426 ℃　时间：2020-03-29 01:14:52

解答

C.of to solve 这里的of 是词组think of 里面的.