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| How are you,jack?What are you doing? | |
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| I'm fine.I'm reading the letters from my sister. | |
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| Very funny.Why don't you call her? | |
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| But we don't use mobile phones.They are damaging to the environment and people. | |
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| You're so thoughtful.How do you communicate, then? | |
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| We just send letter.We should be careful or the world becomes uninhabitable. | |
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