Question

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

Answer 1

1.It was more a success than we had hoped
2 However 是一个连接副词，HOWEVER 解释：不管怎样 ，无论多么， 修饰形容词dull, 引导条件状语从句
无论他多么愚钝，他的的确确是成功的且最高决策者
3.As 仅仅是一个连词，可引导原因状语从句，时间状语从句，定语从句等等

Answer 2

1.It was _C we had hoped A more a success than B a success more than
这一题我不知道 C的具体选择是什么，但我觉得 正确答案是 B,原句即成：
It wa a success more than we had hoped 。这是一个超出我们希望的成功。（比我们希望的更成功）
2.as 作为 however不管怎样 只有选D才通顺，译成：
不管他也许多沉闷，他都是一个成功的高级管理人员。

Answer 3

however dull HE MAY BE, he is certainly a very successful top executive.
HOWEVER 解释：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