Задайте вопрос начиная со слова в скобках. this fox is in the bag.(what)

1 i like to fly   by  plane. 2-did you buy the tickets at the railway station? -no, i did not. i bought them at the airport. 3 the plane is flying in the blue sky, over the plains, over the seas. 4 can i buy a ticket to moscow, please?

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