12.He goes to the library once a week.(划线部分提问,once a week)

12.He goes to the library once a week.(划线部分提问,once a week)
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1.There are some books on the clerk .(一般疑问句并否定回答)
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2.There is some water in the glass.(否定句)
3.There are two boats on the river.(划线部分提问,two boats)
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4.Put your clothes away,please .(否定句)
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