1. 从方框中为下列句子选出最佳应答语。

A．Nice to meet you，too． B．No，he isn't． C．He is my brother． D．She is my mother． E．Yes，she is．

1. （1） —Who's that boy?

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3. （2） —Is she your sister?

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5. （3） —Who's that woman?

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7. （4） —Nice to meet you．

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9. （5） —Is he your father?

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