句型转换
1. That is a black and white cat.(改为复数形式)
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2. Those are big fat pigs. (改为否定句)
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3. They are her trousers. (划线部分提问)
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4. This is an old photo. (改为复数形式)
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5. bag, in, put, your, please, it(连词成句)
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