这道题怎么做：It is impolite of yo

这道题怎么做：单项选择. Is yo it is impolite of you to leave your good friend _____for you it is impolite to at others 为什么这个句子impolite后要用of?It's impolite of you to visit someone w It was impolite of him__(leave)without__(say)good-bye. It is impolite to（ ）others when they are talking. Lily,don't eat so n_____because it is impolite one of the advantage of playing the guitar is it can give yo It is also true that the effect of a drug is much __ upon yo It is none of my business...Get out...I don't want to see yo this piece of paper is beautiful.But it's too small,Could yo It is none of your business what other people think about yo