急求一篇英语作文:The key to be useful .要包含以下三点:

How can we become some barons or successful people?Some people think the key to be useful lies in our ability.The more able you are,the more useful you will be.On the contrary,others think that it's the opportunity that really matters.Without any luck or opportunity,we cannot achieve our dreams and careers.As far as I'm concerned,both of them accounts for one's future life,making it easier for us to be somebody.