题目内容
17、--- 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
试题答案
17、D
解析：时态.题干中有since，故此处用现在完成时.
—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
查看习题详情和答案>>--- 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
查看习题详情和答案>>--- 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
查看习题详情和答案>>
—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