综合填空：选择方框里的单词，用其适当形式填空

happy, friendship, kind, best, problem

 
Everyone needs friends. A good friend should be      . For example, if you have a bad day, a good friend will listen to you and do his or her     to help. To make friends, you must be helpful and try to bring them        .When they have    , you should have a talk with them. Remember that  is one of the most important things in your life.