Question

【题目】The planet______looks like a red and orange ball is Mars.

A. whoB. whichC. thatD. B and C

Answer 1

【答案】D

【解析】

句意：看起来像一个红黄相间的球的那颗行星是火星。who引导定语从句，修饰人； that引导定语从句，修饰人或事物。which引导定语从句，修饰事物。此处修饰planet，表示事物，故用关系代词which或that。故选D。