问题补充:
Many of them turn a deaf ear to his advice, they knew it to be valuable.
A. as if
B. now that
C. even though
D. so that
答案:
A. as if
B. now that
(答案→)C. even though
D. so that
解析:even though 引导让步状语从句,意为“尽管”,表示“尽管他们知道他的建议很有价值,但许多人都不理会”。as if意为“好像”。now that意为“既然”。so that意为“以便”。