It was _C we had hoped A more a success than B a success more than

问题描述:

It was _C we had hoped A more a success than B a success more than
_D_dull he may be,he is certainly a very successful top executive.
A Although B whatever C As D However
为什么as不对啊

however dull HE MAY BE,he is certainly a very successful top executive.
HOWEVER 不管怎样!
不管他本身是怎样的,他的的确确是成功的且最高决策者