Question

【题目】The classroom is very dirty. Please clean .

A. up it B. it up C. them up D. up them

Answer 1

【答案】B

【解析】

试题分析：句意：教室很脏。请清扫它。clean up打扫，这是一个由动词和副词构成的短语，若带有代词宾语，一定要放在两词之间。代替The classroom可用it。所以选B。