what you up to和where u up

what you up to和where u up what you up to what do you up to 和what are you up to 是一个意思吗? What have you been up to lately?和 what are you up to lately? you should know what you are up to do 有语法错误吗? what you are u What's u up to 什么意思 WHAT ARE YOU UP TO "what are you up to what are you up what have you been up to what u up Fly me up to where you are where have you been up to?