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8.4.1 U1 Listening and Speaking
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8.4.2 U2 Listening and Speaking
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8.4.3 U3 Listening and Speaking
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8.4.4 U4 Listening and Speaking
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8.4.5 U5 Listening and Speaking
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8.4.6 U6 Listening and Speaking
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8.4.7 U7 Listening and Speaking
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8.4.8 U8 Listening and Speaking