文明禮貌從我做起，從現(xiàn)在開始，從點滴小事做起。請根據(jù)下面的提示和要求，以 “When to Say Thank You”為題，寫一篇短文。

　　提示：1) When should we say "thank you" at home?

　　2) When are we supposed to say "thank you" at school?

　　3) ...

　　要求：1) 短文須包括提示中的兩個要點和一個補充要點，可適當發(fā)揮。

　　2) 短文中不要出現(xiàn)真實的地名、校名和人名。

　　3) 詞數(shù)80個左右。(開頭已給出，不計入總詞數(shù))

　　參考詞匯：wash, encourage, open

　　When to Say Thank You

　　It's polite to say "thank you" when others help us or say something kind to us. Being polite is a good tradition in our country.Nobody likes a person who is impolite. It's important for us to be polite. We should say "thank you" to parents when they cook for us. We should say "thank you" when they wash clothes for us. We should also be polite at school. When the teachers help us work out questions ,we should say "thank you" to them. When we get bad grades and the teachers and classmates encourage us, we should say "thank you". When someone opens the door for us,we should say "thank you". We should say "thank you" as often as possible.If everyone is polite to others,the world will be more and more beautiful.