题目内容
13．What is the best book ______ you have ever read？（ ）| A． | which | B． | that | C． | who | D． | whose |
分析 你曾经读过的最好的书是什么？
解答 答案：B．
首先分析句子结构，本句中的"______ you have ever read"在复合句中作定语从句，由于先行词是 book指物，在定语从句中作宾语，且先行词前面有形容词最高级修饰，因而只能用that来引导后面的定语从句，不能用which．故选B．
点评 本题考查定语从句的关系代词．首先要掌握几个关系代词引导定语从句的用法，然后结合具体的语句中的先行词，以及在定语从句作的成分，就可以做出正确选择．
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