求下面2个空的答案What must you do when you get a present for your bi

求下面2个空的答案
What must you do when you get a present for your birthday?You have to sit down and write a thank-note.The word “thank you” are very important.We have to use them very often.We say them when someone gives us a drink,help us to pick up things,or lends us a book.
Another important word is “please”.Many people forget to use it.It is not polite to ask someone to do something without saying “please”.We have to use it when we ask for something,too.It may be a book or a pencil,more rice or help.
We have to l________ to say “sorry”,too.When we hurt someone,we’ll have to go up to say “we’re sorry”.When we forget something,we will also say “sorry”.
These three words are easy but important.Our children must learn to use them.They are pleasing(令人高兴) words to use in a_______ language.