题目

—Did you punish him for losing your digital camera? —Yes，but I don't think I ________. A．should do that  B．need to have done so C．ought have done that  D．should have done so 答案：D　[句意——他把你的数码相机弄丢了，你惩罚他了吗？——是的。但我想我本不应该这样做的。shouldn't have done sth意为“(过去)不应该做某事，但实际上已做了”。此处否定发生了转移。 ]

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