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You were silly not your car. [ ] A.to lock B.to have locked C.locking D.having l

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You were silly not your car. [ ] A.to lock B.to have locked C.locking D.having l

You were silly not ________ your car.

[]

A.to lock

B.to have locked

C.locking

D.having locked

试题答案

答案:B

解析:

句子使用了“主语+be+adj.+to do”结构,所以排除C, D两项,were说明动作发生在过去,所以使用不定式的完成式.