双语例句
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Whose pen is this? – it's mine.
这是谁的钢笔？——是我的钢笔。
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Whose pen is this? --- It's Kate's.
这是谁的笔？ 是凯特的。
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Whose pen is this? Let me see. Oh, yes, it's Mary's.
这是谁的钢笔？我来看一看，哦，是玛丽的。