You ______Mark anything. It was none of his business.A、needn’t have toldB、needn

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问题 You ______Mark anything. It was none of his business.

选项 A、needn’t have told
B、needn’t tell
C、mustn’t have told
D、mustn’t tell

答案 A

解析 needn’t have done sth.表示做了本来不必要做的事情,A符合题意。本题后半句所用的过去式表示tell的动作已经发生,B项是建议或要求,D项意为“不准告诉”,这两项的动作均未发生。故不正确;must表推测时用于肯定句,不用于否定,故C项也不对。
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