teaching is a job__you are doing something serious but interest为什么填where?

问题描述:

teaching is a job__you are doing something serious but interest为什么填where?
其余四个选项 which when that

词组be interest in的搭配,in which在英语中是可以等同于where,选which,that缺少成分,选when字面翻译不合乎情理,该句的中文翻译应该是:教书是一项艰巨但是有趣的工作!