Question

【题目】Have you read the book ________ is about the moon?

A. what B. it

C. / D. which

Answer 1

【答案】D

【解析】试题分析：句意：你读过关于月球的那本书吗？修饰先行词book的定语从句中，缺少主语，故用代词which。故选D。