高中英语题,用合适的形式填词?Do you feel __difficult to be happy all the t

高中英语题,用合适的形式填词?
Do you feel __difficult to be happy all the time ? Now I'll give you some tips __how to make yourself happy. One way is being __(self) because unselfishness is the sky factor__(reguire) if you want to get along well with others. By __(say)being unselfish we mean we __not want everything our own way or demand the best share of everything. Another way is to look for good points in __people. You 'll find most people pleasant to go with and it will surely make you happy ,Third, you can not expect to be too prefect , __don't be too unhappy ,When you make a mistake .Everything will be OK if you try to make things right..Finally , it is important to remember that while you are not __(bad) than others, chances you have may not be much better . In this case, __ surest way to be happy is to think yourself above other people. 《以上是问题,只求答案》