Question

【题目】On the bus I saw a student I believed was your brother.

A. who B. whom

C. which D. whoever

Answer 1

【答案】A

【解析】考查定语从句，先行词是a student，定语从句中I thought是插入语，所以定语从句缺少主语，句意：在公共汽车上我看见以为是你哥哥的一个学生。选A。