按要求完成句子。
1. He went to America by plane.(对划线句子提问)
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2. Put on your school clothes.(改为否定句)
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3. We are going to see different places.(改为一般疑问句)
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4.There are three ships on the river.(对划线部分提问)
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5. There is a table in the room.(改为否定句)
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