The poor old man had only a cold room ________.

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________ her mother came back home, the litter girl did not go to bed.

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Tom made the spelling mistake ________ carelessness.

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These old houses are too expensive. I can pay you only 1,000 dollars for each ________.

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Li Ming ________ in touch ________ his American friend since they met in London last year.

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The medical team ________ ten doctors and five nurses.

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A：Do you know who invented ________ telephone?

B：No. But it is really ________ useful invention.

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The boss ________ Mr Black worked was liked by the workers.

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Neither Mr Smith nor his students ________ ready for the meeting.

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________ is the population of China?

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