how are you 是经常用来问好的,几乎什么时候都能用.但how do you do 这个句子一般是在两人第一次见面时说的,但先在很少用啦?
我这里还有几句关于问好的句子,供你参考：1.how are you doing?
2.what's up?3.how's everything?4.how's it going 5.what's new?6.how have you been
这些平时都能用到~!好好看吧~!