1. They had a wonderful time. (改为否定句)
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2. Li Ming went to Dalian with his parents for his last holiday. (改为一般疑问句)
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3. My father did the cooking himself. (就划线部分提问)
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4. They visited the Great Wall yesterday. (就划线部分提问)
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5. I was born in 1997 in Beijing. (改为一般疑问句)
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