Unit 1 When was it invented?
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　　本单元综合与测试
Unit 2 Teenagers should be allowed to choose their own clothes.
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　　本单元综合与测试
Unit 3 It must belong to Carla.
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　　本单元综合与测试
Unit 4 I like music that I can dance to.
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　　本单元综合与测试
Unit 5 You’re supposed to shake hands.
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　　本单元综合与测试
Unit 6 Sad movies make me cry.
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　　本单元综合与测试
Unit 7 Life is full of the unexpected.
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　　本单元综合与测试
Unit 8 We're trying to save the earth!
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　　本单元综合与测试
Unit 9 It's important to have good habits.
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　　本单元综合与测试
Unit 10 I remember meeting all of you in Grade 6.
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　　本单元综合与测试