问题补充:
The teacher demanded all the exercise books the next day.
A. to be handed in
B. would be handed in
C. be handed in
D. to hand in
答案:
A. to be handed in
B. would be handed in
(答案→)C. be handed in
D. to hand in
解析:句意:老师要求所有的作业本在第二天必须交上。这里demanded后的从句需用虚拟语气should+动词原形,should可以省略,这里exercise books与hand in之间是被动关系,故选C。