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用下面给出的单词填空,必要时改变单词形式。 single material possession reduce essential benefit miserable focus 1. It is _____________ that your diet is varied and balanced. 2. The conference may help to _____________ our attention on the economy. 3. We should spend the money on something that will _____________ everyone. 4. They ended by making themselves _____________. 5. The land is in the _____________ of the merchant. 6. The company produces its own training _____________. 7. Costs have been _____________ by 30% in the past years. 8. These days, work plays an important part in a _____________ woman’s life.