句型转换。
（1） You shall go to school on foot. (改为一般过去时)
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（2）He has some good habits. (改为否定句)
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（3）I went to bed late last night. (改为一般疑问句）
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（4） He helps his parents too. (用also换too)
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（5） He never go to bed late. (改同义句)
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