39.When you read the book, you’d better made a mark you have any questions.A. at whichB.

发布时间：2020-08-17 12:30:29

39.When you read the book, you’d better made a mark      you have any questions.
A. at which
B. at where
C. place
D. where

网友回答

A. at which
B. at where
C. place
(答案→)D. where
解析：where引导地点状语从句子，意思是：读书时，你最好在有疑问的地方打上符号。
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