问题
选择题
_______ puzzles me most is that I don’t know _______ the difference between those two lies.
A.What; that
B.It; that
C.What; where
D.It; where
答案
C
考查名词性从句关联词的选择,第一空中所填的连接词引导主语从句,在从句中作主语,故选what,第二空中所填的连接词在从句中作状语,故选where。