问题补充：
Finding a new job as an operator was the reason I moved.
A. at that
B. in which
C. on which
D. for which
答案：
A. at that
B. in which
C. on which
(答案→)D. for which
解析：which引导的是定语从句，从句中谓语动词move是不及物动词，不需宾语，当先行词是reason时，后面又不缺主语和宾语，故可用关系词Why和for which，故选D。
