句型转换。
1. The books are in the bookcase.(改否定句)
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2. The baseball is under the bed.(改一般疑问句)
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3. The pictures are on the wall.(对划线部分提问)
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4. The baseball is in the bag.(变为复数)
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5. Are the chairs next to the table?(做否定回答)
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6. on , T-shirt, the, his, is, bed(连词成句)
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