The teacher demanded that the exam before eleven. A. must finishB. be finishedC. would be

问题补充：

The teacher demanded that the exam before eleven.

A. must finish

B. be finished

C. would be finished

D. must be finished

答案：

A. must finish

(答案→)B. be finished

C. would be finished

D. must be finished

解析：句意：老师要求考试在11点前完成。主句中的谓语是demand的时候，宾语从句的谓语用虚拟语气，用should do，should可以省略，所以选B。