U26-6 New Words and Expressions in Lesson 52
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U22-5 New Words and Expressions in Lesson 43
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U22-3 Pattern Practice
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U23-5 Dictation
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U22-2 Pronunciation
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U19-4 Listening
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U23-3 Pattern Practice
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U23-2 Pronunciation
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U21-4 Listening
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U23-7 New Words and Expressions in Lesson 46
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