Question

【题目】The classrooms were so dirty. I decided________.

A.to clean it upB.to clean them upC.clean up them

Answer 1

【答案】B

【解析】

句意：这些教室很脏，我决定把它们打扫干净。

考查代词和词组。to clean it up去把它打扫干净；to clean them up去把它们打扫干净；clean up them打扫干净。decide to do sth.决定做某事，排除C；classrooms是复数，用them指代，排除A。故选B。