句型转换。
1. It's a book about London. (对画线部分提问)
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2. The desk is old. (改为一般疑问句)
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3. I will take a ball. (改为一般疑问句)
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4. On Tuesday I'll play with my friends. (对画线部分提问)
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5. My brother is taller than me. (改为一般疑问句)
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