问题补充:
单选题BeforejoiningtheDepartmentofDefense,Mr.Panetta_______asdirectoroftheCIAfromFebruarytoJune.A.would serveB.servedC.was servedD.had been served
答案:
B解析考查时态。根据本句的时间状语:from February to June 说明在过去的时间发生的事情,使用过去时即可。Serve没有被动语态。故B正确。
时间:2023-06-15 16:10:21
单选题BeforejoiningtheDepartmentofDefense,Mr.Panetta_______asdirectoroftheCIAfromFebruarytoJune.A.would serveB.servedC.was servedD.had been served
B解析考查时态。根据本句的时间状语:from February to June 说明在过去的时间发生的事情,使用过去时即可。Serve没有被动语态。故B正确。