—What do you think of Sam, the newer?
—Well, he talks as if he everything.
A. had known
B. has known
C. knew
D. will know
网友回答
A. had known
B. has known
(答案→)C. knew
D. will know
解析：考查虚拟语气：as if“好像”，后面接方式状语，如果从句的内容和事实不符要用相应的过去式表示虚拟，句意是：你认为Sam这个新来的人怎样？--哦，他说话就像知道一切了。说明是和现在相反，用过去时。选C。