問題詳情

19.The river was clean before, but_____________
(A) now it’s dirty.
(B) now it is also clean.
(C) we can see many fish in it.
(D) We can take a walk along it.

參考答案

答案：A
難度：適中0.666667
統計：A(4),B(0),C(0),D(0),E(0)