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Grade 9 Unit 3 Topic 1 Section A

Kangkang: Hi, boys, come and have a look...

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Grade 9 Units 1-2 Review

Chinas Green Beat 96 is the first green ...

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Grade 9 Unit 2 Topic 3 Section D

Forests are the lungs of the earth. With...

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Grade 9 Unit 2 Topic 3 Section C

In many countries, people produce power ...

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Grade 9 Unit 2 Topic 3 Section B

Jane: Hi, Michael. Would you like to be ...

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Grade 9 Unit 2 Topic 3 Section A

(A journalist is interviewing Jane about...

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Grade 9 Unit 2 Topic 2 Section D

Although the world is hungry, it is even...

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Grade 9 Unit 2 Topic 2 Section C

The earth is 4.6 billion years old. We h...

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