Man cannot live ______ air ______ water.

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We're working hard now. We'll finish our work ______ ten minutes.

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Don't worry ______ him. He'll be here ______ seven.

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______ these words, he threw the big stone (〔stun〕n. 石头) ______the window.

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Our teachers ______ for Shanghai in three days.

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There was only one hospital in my hometown ten years ago, ______?

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　　A. wasn't there    B. was there

He had to stay at home last night, ______?

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Though it is far ______ here, I can get there alone.

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Her sister is not a doctor. She is not a doctor, ______.

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My ______ came to live in this town last year.

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