题目内容：

Many of them turned a deaf ear to his advice ,( )they knew it to be valuable.
A.as if B.even though C.so that D.what if

优质解答

选择B
这里even though表示即使的意思
翻译：他们中的很多总是对他的建议不理不睬的,即使他们知道这些建议是很宝贵的!