Tác giả: Ken Wilson.

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Unit 1: How was your vacation? Unit 2: I think it's exciting! Unit 3: Do it before you're 30! Unit 4: The best place in the world! Unit 5: Where's the party? Unit 6: You should try it! Unit 7: There are too many stores! Unit 8: I like guys who are creative. Unit 9: what were you doing? Unit 10: It might be an elephant Unit 11: I used to sing. Unit 12: Living in a pyramid.