,.The police _______ having a meeting in their office at ten yesterday.A.is B.are C.was D.were选什么,为什么

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,.The police _______ having a meeting in their office at ten yesterday.A.is B.are C.was D.were选什么,为什么

,.The police _______ having a meeting in their office at ten yesterday.A.is B.are C.was D.were选什么,为什么
,.The police _______ having a meeting in their office at ten yesterday.
A.is B.are C.was D.were
选什么,为什么

,.The police _______ having a meeting in their office at ten yesterday.A.is B.are C.was D.were选什么,为什么
选D
首先,看到后面的 their知道,应该是用复数形式,排除A,C.然后,后面是说的是昨天10点,所以时态是过去式,用were

D