第37题: [单项选择]Only later ______ his notebooks, which contained details of all his thefts. A. they came across B. did they come across C. they had come across D. had they come across 参考答案:B 答案解析:[解析] 本题考查倒装结构。本题中含有only的时间状语提前,因此句子的主语和谓语要部分倒装;又因为根据句意可以判断come across是发生在过去的动作,所以动词用一般过去时,故B项为正确答案。<