When I came into the classroom this morning it me that I had left my book in my dormitor

问题补充：

When I came into the classroom this morning, it me that I had left my book in my dormitory.

A. occurred

B. was occurred

C. occurred to

D. was occurred to

答案：

A. occurred

B. was occurred

(答案→)C. occurred to

D. was occurred to

解析：考查固定句型。It occurs to sb. that…某人想起某事。本句话的意思是：今天早上，当我走进教室的时候，我突然想起我把书忘在了我的宿舍里。