2. 外语
  3. You ______ Mark anything. It was none of his business.

You ______ Mark anything. It was none of his business.

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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 情态动词辨析题。needn’t have done表示一种已经做过，但是没有必要的行为。而如果要表示没有必要做，而实际上也没有做，应该用didn’t need/have to do。
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