题目内容
【题目】Teachers required that all the students __________ their homework all alone.
A. must finish
B. would finish
C. had to finish
D. finish
【答案】D
【解析】句意:老师要求所有的学生独自完成他们的家庭作业。require要求,其宾语从句用虚拟语气,构成为should do sth, should可以省略。
练习册系列答案
相关题目