We traveled over night to Pairs and arrived ________ 5 o'clock _______ the morning.

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Nanjing is a city with many places of interest._________ tourists come here every year.

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My father will be back from Beijing ________ a week.

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Lucy sent a letter _________ her sister before Christmas.

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Mr Smith is sleeping well. Don't __________.

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_______ she speak English when she was four?

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Yao Ming plays _______ basketball very well.

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--What was your mother doing last night while your father ______ TV?

--She was certainly doing some washing.

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________ you were visiting the zoo, I finished my homework.

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My father worked ________ a teacher in the middle school for ten years.

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