1. 情景选择

A. Because it's too long. B. It's two metres long. C. It's more than two thousand years old. D. Yes, I can.

1. （1） —How long is the desk?

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3. （2） —How old is the Great Wall?

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5. （3） —Can you speak English?

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7. （4） —Why can't we walk along all of the Great Wall?

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