英语短文填空,希望讲解的细致一点,

英语短文填空,希望讲解的细致一点,
who ,relative ,answer ,manner,custom ,hang ,whatever ,suppose ,embarrass ,return,clear ,impress 以上是需要填的词
内容:Many children like to use the telephone.It's fun to be able to talk to a（）who lives far away.It can be fun to call friends on rainy days.Everyone who plans to use a phone should use good phone （）.Do you know what to do when you can‘t reach the person you are calling?you can （）people with your phone manners.You can learn how to leave a message.
If your friend isn’t at home,you might reach an （） machine instead of a person.If you（） up,your friend won‘t know you called.Your friend won’t be able to call you back.you will need to leave a message.Your friend can listen to your message when he or she （）home.
Prepare to speak ().Don't go too fast!Say"This is ..."and give your name.Next you are()to tell your number,it's polite to give it again.After that,you should give the name of the person()you are calling .Also state your surpose,if you have one,You may explain that you have a question about homework!() it is ,keep it short,Ask your friend to call you back.This is when you might give the best time to call,such as"between 6:00 a.m and 8:00 p.m".