题目

 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 答案：D 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。（2010•眉山一模）集合{x∈z|0＜|x|＜3}的真子集的个数是（　　）A．32B．31C．16D．15