单选题 ______second thoughts I'm quite content to stay for the time being.
A. At B. On C. In D. As

【正确答案】 B
【答案解析】[解析] 固定短语中的介词选用
[解析] on second thought/on second thoughts 为“一再思考,三思之后,转念一想,经重新考虑后”。又如,at first sight 第一次见面后,fall in (-to)love at first sight “一见钟情”。