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Page 1: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's
Page 2: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's
Page 3: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's
Page 4: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's
Page 5: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's
Page 6: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's
Page 7: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's
Page 8: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's
Page 9: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's
Page 10: textbook.51talk.comtextbook.51talk.com/text/ClassicEnglishVersion3Level4/Unit6... · It's opposite ... on 51 Talk. Proprietary and Confidential. 51Talk Speaking naturally ... It's