按要求改写下列句子
13.The windmill moves quickly on a windy day. (改为一般疑问句)
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14.There is heavy rain this afternoon. (改为否定句)
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15.Look out of the window, Ben. (改为否定旬)
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16.I want to hear the sound of the wind. (根据划线部分提问)
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17.Little Rabbit has some small bells in her room. (根据划线部分提问)
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18.The window is made of glass. (根据划线部分提问)
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