题目内容：

That's a good idea.I couldn't agree with you _____.
A.much B.less
C.more D.little

优质解答

选C.我完全同意你的看法或说法
正常语序是agree sth with sb.也就是agree more with you.
因为全部同意了,也就没有更多东西要去agree.类似的还有can't thank sb enough（对某人感激不尽,不能谢某人谢到足够）