.The teacher came to the classroom and demanded ____what had hap

.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
【正确答案】：D
【题目解析】：

demand可接to do sth，但不能接sb to do sth。该处为被动，故为to be told