按要求完成下列句子。
1.Are you having lunch at school? (作肯定回答)
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2.Tom is doing his homework now. (对画线部分提问)
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3.I often watch TV on Sundays. (改为一般疑问句)
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4.China's National Day is on October 1st. (对画线部分提问)
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5.water, is, whose, bottle, this (?)(连词成句)
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