He was reading a book ________ My Hometown.

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There was a terrible noise __________ the sudden burst of light.

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Daddy didn't mind what we were doing, as long as we were together, _____________ fun.

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--How long _________ at this job?

--Since 1990.

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A．were you employed

B．have you been employed

C．had you been employed

D．will you be employed

Not until all the fish died in the river _________ how serious the pollution was.

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A．did the villagers realize

B．the villagers realized

C．the villagers

D．didn't the villagers realize

Ann never dreams of _________ a chance for her to be sent abroad so soon.

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When ________ he always asked me for help.

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I ________ while reading the English textbook. Luckily, my roommate woke me up in time !

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London is a most beautiful city in Britain, __________ the River Thames.

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--Sorry to have interrupted you. Please go on.

--Where was I?

--You _________ you didn't like your father's job.

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