You were silly not__your car.A.to lock B.to have locked C.locking D.having locked讲解一下吧.

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You were silly not__your car.A.to lock B.to have locked C.locking D.having locked讲解一下吧.
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You were silly not__your car.A.to lock B.to have locked C.locking D.having locked讲解一下吧.
You were silly not__your car.A.to lock B.to have locked C.locking D.having locked讲解一下吧.

You were silly not__your car.A.to lock B.to have locked C.locking D.having locked讲解一下吧.
B 因为是过去完成时 是对过去的结论 貌似were to do 有这个词存在

be to do sth.表示精要发生的动作,根据题意是对发生过的动作进行评价,所以应该用完成时,在非谓语动词里面,完成时态表示先于谓语动词发生