题目内容
_________ the floor, I found his pen lying on the ground.
| A.While sweeping | B.While swept | C.If sweeping | D.If swept |
A
解析此题考查while引导的短语作时间状语。现在分词短语表示动作正在进行。
练习册系列答案
相关题目
题目内容
_________ the floor, I found his pen lying on the ground.
| A.While sweeping | B.While swept | C.If sweeping | D.If swept |
A
解析此题考查while引导的短语作时间状语。现在分词短语表示动作正在进行。