The key problem is that what is lost at the same time?这句话对吗The key problem is what was lost at the same time and are these worthwhile?
问题描述：
The key problem is that what is lost at the same time?这句话对吗
The key problem is what was lost at the same time and are these worthwhile?
答
that去掉就ok了
答
意思就是：
关键的问题是同时失去了什麼 。
答
The key problem is that what is lost at the same time?这句话对吗
不对.1,句式不对,2,语态不对.
正确应该是：
The key problem is what was lost at the same time?
答
不对，这里what is lost at the same time是表语从句，只有what既可以做表语从句的主语，又可以引导表语从句。
简单一句话，what可以同时做两种成分