Many of them turned a deaf ear to her advice, they knew it to be valuable.
A. even though
B. now that
C. as if
D. as long as
网友回答
(答案→)A. even though
B. now that
C. as if
D. as long as
解析：考查连词。even though 即使，now that 既然，as if 好像，as long as只要，句意：他们当中的许多人对她的建议置若罔闻，即使他们知道她的建议很有价值。所以选A。