0  224229  224237  224243  224247  224253  224255  224259  224265  224267  224273  224279  224283  224285  224289  224295  224297  224303  224307  224309  224313  224315  224319  224321  224323  224324  224325  224327  224328  224329  224331  224333  224337  224339  224343  224345  224349  224355  224357  224363  224367  224369  224373  224379  224385  224387  224393  224397  224399  224405  224409  224415  224423  447090 

31. wake up                 32. be asleep          be awake

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29. take a holiday               30. three quarters of the population

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27. rather than                 28. improve my listening skills

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25. leave school                26. think about doing sth.

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23. start doing sth.               24. take lessons

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21. a flight attendant              22. a tour guide

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20.the way to do sth= the way of doing sth.

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18. an English-speaking country            19. welcome to…

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16. end up                  17. travel to…

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14. on board                 15. take different routes

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同步练习册答案