无
*注意事项:
例如:play——playing
⑴
⑵
⑶
⑷
A. watching TV B. running C. jumping D. swimming
⑴What are you doing? A. He is jumping.
⑵What is Tom doing? B. She's running.
⑶What are they doing? C. I'm watching TV.
⑷What is Amy doing? D. They are playing chess.
—What is he doing?
—
—What is she doing?
—What are you doing?
—What are they doing?
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