根据短文内容及首字母提示补全单词,完成短文.

根据短文内容及首字母提示补全单词,完成短文.
American people like to say "Thank you" when o________ help them or say somethings kind to them .People of many other countries do so ,t________ .It's a very good habit.
You should say "Thank you" when someone passes you the salt on the table,when someone walking before you keeps the door o_________ for you ,when someone says you have d_________ your work well,or you have bought a nice thing,or your city is very beautiful.
"Thank you "is used not only between friends,but a________ between parents and children,brothers and sisters,husbands and wives.
"Excuse me "is another short sentence they use.When you h_________ someone say so behind you ,you know that somebody wants to walk p_________ you.
It is not polite to b________ others while they are talking.If you want to speak to one of them,say "Excuse me "first,and then begin talking.You should also do so when you want cough or make any u________ noise before others.
Let's all l__________ to say "Thank you"and "Excuse me".