I was about to give up the maths puzzle when an idea _________ upon my mind．

I was about to give up the maths puzzle when an idea _________ upon my mind．

A.hit

B.struck

C.flashed

D.happened

答案及解析： C

解析：

如果要表示“某人想起……”要用：An idea hit/struck sb．，也可用An idea flashed upon one’s mind。