we think it's impolite to go into room without knccking at the door,don't we?

问题描述:

we think it's impolite to go into room without knccking at the door,don't we?
改错

we think it's impolite to go into room without knocking at the door,do we?不是don't we.当主语是I时,谓语为think时,反意疑问句中的谓语肯否定不看主句,而看从句来写.it's impolite to...是否定,因此反义疑问句...