问题
选择题
Today, we’ll discuss a number of cases __________ beginners of English fail to use the language properly.
A．which
B．as
C．why
D．where
答案
D。
where在此引导定语从句，修饰先行词cases，where的意思相当于in which。类例：There are cases where the word “mighty” is used as an adverb. 在一些情况下，mighty一词可用作副词。