ever+been和never+been的区别
have been 和have ever been区别!
have ever been 还是 have never been
have never been与never have been的区别
have ever been和have been有什么用法上的区别么?
Have you been to Rome和Have you ever been Rome的区别
never和ever的区别
been in 和 been to 的区别?
been in 和been to 的区别
have been 和 has been的区别
been in和been to的区别
have you ever been to China和have you ever been China有什么区别?
i’ ve never been to abroad. 和i haven't ever been to abroad.