it's shame ___________able to give them any advice.A. not to have been B.to have not been C.to have been not D.to not have been应该选什么,为什么呢~~

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it's shame ___________able to give them any advice.A. not to have been  B.to have not been C.to have been not D.to not have been应该选什么,为什么呢~~

it's shame ___________able to give them any advice.A. not to have been B.to have not been C.to have been not D.to not have been应该选什么,为什么呢~~
it's shame ___________able to give them any advice.
A. not to have been B.to have not been C.to have been not D.to not have been
应该选什么,为什么呢~~

it's shame ___________able to give them any advice.A. not to have been B.to have not been C.to have been not D.to not have been应该选什么,为什么呢~~
A.it句型
it is +n+to do/not to do这里应该是it's a shame 才对,题目写错了.
it is a shame to tell lies.

A 这是动词不定式的的否定形式 not to do

b

A