打招呼不要再说“你吃了吗？”我们这样说：Don’t say “你(nǐ)吃(chī)了(le)吗(mɑ)？”to Chinese any more.As the native speakers,we say like that: 早上好！Good morning 晚上好！Good evening 你好！How do you do！ 好久不见！It's been a long time 最近忙什么呢？What have you been doing lately?