It took several weeks ________ all the reads and ________ all the broken electricity lines and telephone lines.

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—Is there anything you want from town?

—No, thank you. But I would like to get ________.

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The old man has retired (退休) and now a young man ________.

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After he finished his work, he went to the doctor to have his teeth ________.

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—There's hardly any petrol(汽油) left in the tank.

—I ________ this to happen for the last ten minutes.

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I didn't see your sister at the meeting. If she ________, she would have met my brother.

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The old man ________ for several years before I knew it.

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I shall stay in the hotel all day ________ there is news of the missing child.

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Mr Brown was much disappointed to see the washing machine she had had ________ went wrong again.

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Nowadays farmers in China begin to use tractors ________ cattle for farming work.

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