i do not know that if you are right 这句话 that 和 if 可以一起做连词吗?
问题描述：
i do not know that if you are right 这句话 that 和 if 可以一起做连词吗?
答
不对吧,是I know that you are right.但是原文是i don't know连词应仅用if或whether 无that