He _______ in a university for five years, but now he runs a company of his own.

    A. has taught       B. had taught        C. taught           D. has been teaching

 

【答案】

C

【解析】 略

 

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Karen, grown up in a very traditional family in the western United States, maintained high moral(道德的) standards  throughout her youth.. In 1984,at the age of 23,she married Bill. They were blessed with two children, a boy and a girl.

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