句型转换
(1)I can sing and dance in class. (改成一般疑问句并作肯定否定回答)
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(2)She has a beautiful skirt. (改成否定句)
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(3)Liu Tao has some chocolate and sweets.(改成否定句)
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(4)Yang Ling can sweep the floor.( 改成否定句)
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