have you been to做问句,用什么答?

have you been to做问句,用什么答? Have you been to? Have you been to China?和 Have you ever been to China?有什么区别吗? what have you been up to与 how have you been有什么区别? have you ever been to China和have you ever been China有什么区别? where have you been 和where have you been to 哪个对?有什么不同? 在现在完成时中have you been in与have you been to有什么区别 have you been to Beijing Have you been to America have you been to paris where have you been to Have you ( ) been to London?