13.—Look,__________ dirty the water is!----Yes,we should really take some actions to deal with

题目

13.—Look,__________ dirty the water is!----Yes,we should really take some actions to deal with
13.—Look,__________ dirty the water is!
----Yes,we should really take some actions to deal with it.
A.what a B.what C.how D.how a
为什么选C?how 不是用来修饰动词的么?

答案