The thief in from the kitchen window as the door was closed.A. may climbB. must have clim

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A. may climb
B. must have climbed

C. could have climbed
(答案→)D. should have climbed
解析：问句中使用了过去时态，说明动作发生在“过去”；A、C项表示“现在”或者“将来”，排除。must不能和完成时一起用于疑问句，排除。这里should have done表示应该做某事而没有做，带有批评的口气。