have been in ,have been at,have gone to,have been to的区别
问题描述：
have been in ,have been at,have gone to,have been to的区别
请详细一点,要有例句,
答
Eg：I have been in（接大地点） London for about 4 years.I have been at （接小地点）the bus station for about 4 hours.They have gone to（去了还没回） Beijing .If you have something important to tell th...