短文填空。阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
Mr. Johnson lived in the woods with his wife and children. He owned ____ farm, which looked almost abandoned. ____ (lucky), he also had a cow which produced milk every day. He sold or exchanged some of the milk in the towns nearly for other food and made cheese and butter for the family with what ____ (leave). The cow was their only means of support, in fact. One day, the cow was eating grass ____ it began to rain heavily. While ____ (make) great efforts to run away, she ____ (fall) over the hill and died. Then the Johnson tried to make a living ____ the cow. In order to support his family, Mr. Johnson began to plant herbs and vegetables. Since the plants took a while to grow, he started cutting down trees ____ (sell) the wood. Thinking about his children's clothes, he started growing cotton too. When harvest came around, he was already selling herbs , vegetables and cotton in the market ____ people from the town met regularly. Now it occurred to him that his farm had much potential and that the ____ (die) of the cow was a bit of luck.
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