◎ 题干
When you read the book, you'd better make a mark ____ you have any questions.

[     ]

A. at which
B. at where
C. the place
D. where
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“When you read the book, you'd better make a mark ____ you have any questions. [ ]A. at which B. at where C. the place D. where …”主要考查了你对  【连接副词】【状语从句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。