Lesson 46Expensive and uncomfortable既昂贵又受罪First listen and then answer the question.听录音，然 ...

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Lesson 49 The end of a dream 美梦告终 First listen and then answer the question. 听录音，然后回答 ...

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Lesson 51 Reward for virtue 对美德的奖赏 First listen and then answer the question. 听录音，然后回 ...

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Lesson 59 In or out? 进来还是出去？ First listen and then answer the question. 听录音，然后回答以 ...

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Lesson 50 Taken for a ride 乘车兜风 First listen and then answer the question. 听录音，然后回答以 ...

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Lesson 52 A pretty carpet 漂亮的地毯 First listen and then answer the question. 听录音，然后回答以 ...

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Lesson 57 Can I help you, madam? 您要买什么，夫人？ First listen and then answer the question. 听 ...

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Lesson 62 After the fire 大火之后 First listen and then answer the question. 听录音，然后回答以下 ...

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Lesson 61Trouble with the Hubble哈勃望远镜的困境First listen and then answer the question.听录音，然 ...

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Lesson 54 Sticky fingers 粘糊的手指 First listen and then answer the question. 听录音，然后回答以 ...

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Lesson 53 Hot snake 触电的蛇 First listen and then answer the question. 听录音，然后回答以下问题。 ...

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Lesson 60 The future 卜算未来 First listen and then answer the question. 听录音，然后回答以下问题。 ...

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Lesson 58 A blessing in disguise? 是因祸得福吗？ First listen and then answer the question. 听录音 ...

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Lesson 56Faster than sound!比声音还快！First listen and then answer the question.听录音，然后回答以 ...

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Lesson 55Not a gold mine并非金矿First listen and then answer the question.听录音，然后回答以下问题。 ...

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Lesson 69 But not murder! 并非谋杀！ First listen and then answer the question. 听录音，然后回答以 ...

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Lesson 63 She was not amused 她并不觉得好笑 First listen and then answer the question. 听录音，然 ...

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Lesson 70 Red for danger 危险的红色 First listen and then answer the question. 听录音，然后回答以 ...

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Lesson 65 Jumbo versus the police 小象对警察 First listen and then answer the question. 听录音，然 ...

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Lesson 72 A car called bluebird “蓝鸟”汽车 First listen and then answer the questi ...

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