按要求写句子。
1. This is a box and that is a knife. (改为复数句)
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2. Please put the clothes here. (改为否定句)
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3. They get up at six thirty. (对画线部分提问)
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4. Mary's birthday is on November thirteenth. (对画线部分提问)
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5. can, buses, many, there, I, over, see (.) (连词成句)
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