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1. This is a watch. (變為復數形式)
   __________ are some __________.
2. Can Cindy sing this song in Chinese?(作肯定回答)
   __________, __________ can.
3. This sweater is $28. (對劃線部分提問)
    _________ __________ is this sweater?
4. He does his homework in the evening. (改為否定句)
    He __________ __________ his homework in the evening.
5. Tile biology class isn't boring. (改為同一句)
    The biology class __________ __________.