1 . He then placed the hot stones in _________ empty oil drum with kau kau (sweet potato), ripe corn, and greens. (用适当的词填空)
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2 . He prefers this brand of coffee which, as he said, has _________ unusually good flavour. （用适当的词填空）
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3 . Well, if they really wanted to help Henry, they could offer him ________ essential job. (用适当的词填空)
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4 . Today, the Chinese writing system is still ________ important part of Chinese culture. (用适当的词填空)
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5 . As ________ alternative, some farmers have switched to organic farming, and many customers have turned to organic food when they shop at the local grocery. (用适当的词填空)
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