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The doctor has operated on the old lady. (改为被动语态的特殊疑问句)

________ ________ has the old lady ________ operated on?

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They saw the old man lying in bed then. (改为被动语态)

The old man ________ ________ ________ in bed then.

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The story happened during their stay in Hong Kong. (对划线部分提问)

________ and ________ did the story happen?

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They discussed the matter throughout the night. (保持原句意思)

They discussed the matter ________ ________ the night.

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What he said was exciting. (保持原句意思)

His ________ ________ exciting.

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The man needn't water the garden today. (对划线部分提问)

________ ________ the man ________ today?

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Liquids can often be turned into gases when they are made hot enough. (对划线部分提问)

________ ________ ________ often be turned into gases?

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We can see steam rise from the wet clothes. (改为被动语态)

Steam can ________ ________ ________ ________ from the wet clothes.

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Hurry up, or you won't catch the train. (保持原句意思)

________ you don't hurry, you'll ________ the train.

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Leave the basin of water outside, and it will soon be frozen. (保持原句意思)

________ ________ leave the basin of water outside, ________ soon be frozen.