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最佳答案：最好是 yes,they are不能用 yes ,this is,因为books是复数whose book is it正确,后面的一句不完整,不正确
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最佳答案：there are three steamed crabs in each dish,there is also a bowl of vinegar on it
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最佳答案：在回答别人问题时,如果be动词结尾,就不能缩写,如 yes,he is. yes,we are. yes, i am.如果后面还有其他词则可以缩写：No, I'
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最佳答案：A cinder - path winds along by the side of the pool. It is off the beaten track