题目内容
【题目】__________ puzzles me most is that I don't know __________ the difference between the two lies.
A. What; how B. What; where
C. That; what D. How; which
【答案】B
【解析】此题考查名词性从句.第一空是主语从句,从句中缺少主语,所以填what,第二空是宾语从句,从句中缺少地点状语.
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