摘要：8．-Lucy.I told Denny about your success. -Oh.you him,I had told him already. A．shouldn’t have told B．needn’t have told C．couldn’t have told D．mustn’t have told 解析:考查情态动词.答语意为:你本没必要告诉他.我已经告诉过他了.故用needn’t have done表示 “本不必做却做了 .shouldn’t have done表示 “本不应该做但做了 ,couldn’t have done “不可能做某事 ,must表示猜测时只用于肯定句中.must have done “准是-- . 答案:B

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