Question

(2007·长沙中考题)

Do you know the reason ________ he was late?

[　　]

A．for which

B．for what

C．which

D．of which

Answer 1

答案：A
解析：

解析：从句子的结构看，本句是含定语从句的主从复合句。先行词为reason，而定语从句的结构为：he was late for the reason，因此关系代词在定语从句中作介词for的宾语。因此空格中应填写for which。故A为正确答案。