题目内容：

Do you feel 1.difficult to be happy all the time? Now I’ll give you some Tips 2.how to make yourself happy. One way is being 3.(self) because unselfishness is the key factor 4. (require) if you want to get along well with others. By 5.(say) being unselfish we mean we 6.not want everything our own way or demand the best share of everything. Another way is to look for good points in 7.people. You will find most people pleasant to go with and it will surely make you happy. Third, you can’t expect to be too perfect, 8.don’t be too unhappy when you make mistake. Everything will be Ok if you  try to make things right. Finally, it is important to remember that while you  are no 9.(bad) than others, chances you have may not be much better in this case, 10. best way to be happy is to think yourself above other people.