Question

【题目】We often help the old man________.

A. to do some cleaning B. cleaned

C. cleans D. cleaning

Answer 1

【答案】A

【解析】

句意：我们经常帮助那位老人打扫卫生。短语help sb. to do sth.短语do some cleaning表示打扫卫生。根据题意，故选A。