It suddenly to the teacher that he hadn’t left any assignments(作业) to his students.
A. happened
B. occurred
C. thought
D. took place
网友回答
A. happened
(答案→)B. occurred
C. thought
D. took place
解析：句意：这位老师突然想起来他没有给学生留作业。Happen to sb某人怎么了；occur to sb突然想起；think认为；take place发生。根据句意故选B。