The hospital well, where many wounded every day.
A. is operated, operation
B. operates, are operated on
C. operates; are operated
D. operates; operates on
网友回答
A. is operated, operation
(答案→)B. operates, are operated on
C. operates; are operated
D. operates; operates on
解析：operate “做手术，操作，运转” operate on sb 的被动为sb be operated on.
“医院运转良好，在医院里，每天都有伤员做手术。”