题目内容

Minister Bill De Blasio     in office fewer than 48 hours when he came face to face with his biggest challenge in his life．
A．has beenB．had beenC．would beD．is
B               
             
试题分析： 考查时态。句意：比尔 部长当他面对人生中最大的挑战时，他才上任不过48小时。根据当他面对挑战时，发生在过去，而他上任发生在过去的过去，故用过去完成时，所以选B项。       
考点 : 考查时态
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