改错：It is not polite speak to the old in a loud voice请帮我解释一下怎么错何为什么错,涉及什么知识点?

英语的改错题：It is not polite to shout to other people.改错：It is not polite to shout to other peopleperson 的复数就是people吧。 It is not polite. laugh at people It is not polite _____(speak) loudly in the library. It is not polite to stare at others. it is not polite 后面的动词用什么形式? 改错：It is not polite speak to the old in a loud voice请帮我解释一下怎么错何为什么错,涉及什么知识点? I ___to leave without __goodbye.该选什么?a think it is not polite,sayb thinks it is not polite,sayingc don't think it is polite,say d don't think it is polite,saying I ___to leave without __goodbyea think it is not polite,sayb thinks it is not polite,sayingc don't think it is polite,say d don't think it is polite,saying 改错 Make sure the water is not too much and too polite. Don not l____ at that old man.It is not polite.根据首字母填空. Do not l____ at that old man.It is not polite Jack,___eat in class.It is not polite.Adon't Bdoesn't Cno D not it is polite to do It is not polite to interrupt others whenIt is not polite to interrupt others when they are talking without sayingExcuse me .求翻译 It is not polite ___(knock) on your neighbour door like that in some western countries ,it is not polite to l____ some food on you plate. It is not polite to make others stop when they are talking的同义句 It is not polite to ask----(person) questions.横线上应填什么