I will never forget the day I came to my university and the day I spent in a new city. A

问题补充：

I will never forget the day I came to my university and the day I spent in a new city.

A. when; which

B. which; when

C. what; that

D. on which; when

答案：

(答案→)A. when; which

B. which; when

C. what; that

D. on which; when

解析：在本句中两个先行词the day都是表示时间的名词,但第一个空白处要填的关系词在从句中作状语,因此要用关系副词when. 第二个空白处要填的关系词在从句中作动词spent的宾语,因此要用关系代词which或that来引导定语从句.