定语从句基础练习题及答案解析

【典型例题】 [例1] Friendship is needed by all, _____ plays an important role in people’s lives. A. which B. that C. who D. it 分析：_____ plays an important role in people’s lives为非限定性定语从句修饰先行词Friendship用which连接定语从句。 答案：A [例2] Uncle Li _____ I worked three years ago has retired now. A. who B. whom C. with whom D. to whom 分析：_____ I worked three years ago作为定语从句修饰先行词Uncle Li，从句完整的表达是：I worked with Uncle Li three years ago. 所以关系词前应加上介词with。 答案：C [例3] Is this the reason _____ at the meeting f