题目内容
The ambulance was just arriving, for a worker, who ____________ the window on the second floor, fell off the window.
A. had been repairing B. was repairing
C. has been repairing D. would be repairing
A
练习册系列答案
相关题目
题目内容
The ambulance was just arriving, for a worker, who ____________ the window on the second floor, fell off the window.
A. had been repairing B. was repairing
C. has been repairing D. would be repairing
A