根据短文内容的理解，选择最佳答案填空。
Everyone, rich or poor, can have happiness. You don't need to think too much about those 1 people. They may always feel lonely (孤独的) 2 their houses are too big, and they may want to take a 3 on country roads because they drive to work every day in the busy city.
4, happiness is always around you. When you are unhappy, your friends will come to 5 you and this will make you happy. When you study hard at your lessons, you will get good marks and of course you will 6 happy about it. If you don't feel 7, your parents will take good care of you and you will be happy. When you are 8, you can also say you are happy because you may have something else that money can't buy. When you 9 problems, say loudly that you are happy because you have 10 chances to challenge (挑战) yourself. Then you can succeed (成功) in what you do and this may bring you happiness.
