The teacher came to the classroom and demanded what had happened.
A. his students to tell him
B. being told
C. telling him
D. to be told
网友回答
A. his students to tell him
B. being told
C. telling him
(答案→)D. to be told
解析： demand可接to do sth，但不能接sb to do sth。该处为被动，故为to be told。