1. 选择正确的应答句。

A. It's a bee. B. It's on the wall. C. A blackboard，two lights, many desks and chairs. D. OK. E. It's so nice.

1. （1） —Where is it?

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3. （2） —Let's clean our classroom.

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5. （3） —What's in the classroom?

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7. （4） —What's this?

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9. （5） —Look at the picture.

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