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        1. 41.[2003春季北京]How long ________ at this job?

          Since 1990.

          A. were you employed

          B. have you been employed

          C. had you been employed

          D. will you be employed

           

          答案:B
          提示:

          題目考察完成時態(tài)的被動語態(tài)形式

           


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