1. 根据问句选择正确的答语

A. He's reading a book. B. She is watching TV. C. I'm taking pictures. D. I like swimming.

1. （1） —What are you doing?

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3. （2） —What is Lingling doing?

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5. （3） —What is Tom doing?

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7. （4） —What do you like doing?

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