They have done all __ stop the sisease from getting around.

题目

They have done all __ stop the sisease from getting around.
A.what they can B.they can to
C.that they can
D.what they can to

答案

D
分析句子成分
They为主语
have done为谓语
all __ 为宾语
（to） stop the sisease from getting around
为目的状语.
这样懂不?