语法与词汇
The desegregation was achieved through a number of struggles, _____ been mentioned in previous chapters.无
A、
a few of which
B、
a few of them
C、
a few of those
D、
a few of that
【正确答案】
A
【答案解析】
句意： 经过数次斗争， 种族隔离制度被取消了， 其中的几次斗争在前面的章节已经提到。 本题考查非限制性定语从句， 关系代词which前可加修饰语。
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