Not once to Michael that he could one day become a top student in his class.A. occurred

问题补充：

Not once to Michael that he could one day become a top student in his class.

A. occurred it

B. did it occur

C. it occurred

D. it did occur

答案：

A. occurred it

(答案→)B. did it occur

C. it occurred

D. it did occur

解析：句意：对于迈克尔来说，有朝一日会成为班上的尖子生这种事从不会出现在他的身上。Not once位于句首，表示否定的词放在句首句子用部分倒装，故排除CD，选项A是完全倒装，it是形式主语，that引导的从句是真正的主语从句，所以选B。