阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。
Once upon a time there was a farmer      worked hard in the fields  every day. One day, while he was ploughing the fields, he heard a          ( bump) sound. He saw a         lying by the trump. He picked it       and found that it was a fat rabbit. He thought to        , “Since it is so easy to get a rabbit like that, why should I work so hard all day long?” He threw his hoe away and        (lie) by the tree every day,         (dream) for more rabbits to come. When he finally realized his        (foolish) and returned to his fields, he found that all his crops were          (die). This story tells that  we should not wait for unexpected gains by trusting to chance and luck.  Or, we should not hope to get rewards     hard work.  .