按要求改写句子。
(1) There are some apples on the table.(改为单数形式)
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(2) This child is playing football. (改为复数形式)
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(3) This is an orange.(对画线部分提问)
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(4) There is a tomato in the bag(对画线部分提问)
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(5) I have 6 pens.(对画线部分提问)
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