Question

【题目】I was at a loss what to do next when an excellent idea __________ me.

A. occurred to

B. happened to

C. knocked to

D. knocked at

Answer 1

【答案】A

【解析】occur to... (主意) 浮现于脑海中。句意为：当我正不知道下一步该怎么做时，脑海中突然出现了一个很好的想法。当表示发生时，A和B同义，但是，happen to没有“想起”之意。