动词不定式选择题4

题目

动词不定式选择题4
His method has proved _____ very effective and it is worthy of ______.
A.to be,adopting
C.to be,being adopted
be worthy of doing这个词组不是可以以主动表示被动的吗?
为什么答案是C?

答案

是 is worth doing 主动表被动了
而 be worthy of 被动的时候就 是 要加BEING啊.