Question

【题目】—Why do you look worried?

—Fred left the company half an hour ago. His work unfinished since.

A. left B. was left

C. has left D. has been left

Answer 1

【答案】D

【解析】

句意：——你为什么看起来很担心? ——弗雷德半小时前离开了公司。从那时起，他的工作就没有完成。考查语态辨析题。主语His work是动词leave的受动者，需用被动语态，可排除AC两项；since自从 ,作副词用需与完成时连用；根据句意结构，可知选D。