句型转换。
（1）They went to school. (变否定句)
Theyto school___________________________________
（2）This is your blue skirt. (改为同义句)
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（3）That football is his.  (改为一般疑问句)
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（4）This is Lin Tao’s coat.(改为否定句)
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（5）They have lunch every day. (改为一般疑问句)
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