作业帮have been they have been doctors中been后直接加名词doctors.那为什么have been to China中必须加to等介词才能加名词China?
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/29 12:40:23
have been
they have been doctors中been后直接加名词doctors.
那为什么have been to China中必须加to等介词才能加名词China?
因为China在这里表示地点,have been to的意思是曾经去过xx地方,如果不加to就成了have been China,语法上有毛病不说,连意思都没法解释~have/has been to就是个固定说法~别钻牛角尖了~另,表示地点的名词做宾语,表语或状语时,都会有个介词来帮助其连接句子的其他成分的,比如,
动宾结构：I go to school everyday.系表结构：they were at school yesterday.作状语的情况：what did you do at school today?
暂时就想到这些了~越学英语越觉得不那么会解释语法问题了……
Where have they been?
They have a____ been there
they have been there before.so have i they have been there before.(),() 改为同义句
what have they been doing 是什么时态
What places have they been?怎么翻译?
where have they been?是现在完成时吗?
they have been in kate's for
they have been the subject of debate
they have been acting up more lately
They have been here once.把been换成came怎么样
They have never been opened.为什么不可以是They never have been opened.
they have been here since 1988,对1988进行提问,（）（）have they been here?
They have been friends for 6 years. 改为同义句 They have been friends _______ _______.
They have been skating for five hours 同义句 They have been skating_______ _____ ________ ______
Where have they been?能不能说：They have been in their room.
have been
have been
have been