宾语从句中从句不能用助动词吗？

— Do you know ____ now?

— In People’s Hotel.

where does Tom work

where did Tom work

where Tom works

where Tom worked

第一个选项为什么不能呢？请教老师解答

— Do you know ____ now?

— In People’s Hotel.

A. where does Tom work

B. where did Tom work

C. where Tom works

D. where Tom worked

【答】 know 后面是一个宾语从句，只可以用陈述句语序。A. where does Tom work 和

B. where did Tom work 都是疑问句语序，所以是不对的。由于从句的时间状语是 now，所以 C. where Tom works 是正确答案。