增加：在缺词处加一个漏字符号(∧)，并在其下面写出应该加的词。

删除：把多余的词用斜线(\)划掉。

修改：在错的词下画一横线，并在该词下面写出修改后的词。

    Your parents love you and care about you. As a teenager, you should do what you can make them happy. Here is some advice.

    Do your chores. Help your parents with when you see them working around the house. Do your chores without being asked to and do so more than you are asked to.

    Develop interest something. Find out what you are good at, and join a club that can help you improve you. It's good to have hobbies. Having something that your parents can hang on the walls like a painting will bring them much happy.

    Talk with your parents good. Do not talk back to (对……顶嘴) your parents when they understand you. Find a right time talking with them. They will be glad to take time talking with you.

Bill and I am fourteen years old.

This can't be my sister's bike because her is blue.

          A                   B                  C         D

I feel luck to make friends with you.