what have you been up to与 how have you been有什么区别?
what have you been up to与 how have you been有什么区别?
what have you been up to 还是 how have you been up to
how have you been and what have you been up to.
在现在完成时中have you been in与have you been to有什么区别
What have you been up to lately?
what have you been up to today.
what have you been up to
what have you been up to?中文翻译
What have you been up to?
what are you up what have you been up to
Have you been to China?和 Have you ever been to China?有什么区别吗?
have you ever been to China和have you ever been China有什么区别?