its polite to do sthtr

问题描述:

its polite to do sth
tr

原题应改为:It's polite to do sth.(做某事是礼貌的).例句:1.It's polite to stand in line at the bus stop.(在公交车站内排队是礼貌的.)2.It's polite to talk about the weather when you meet your friend...