题目内容
【题目】你没有必要告诉她所发生的事情，她已经知道了。
【答案】You needn't/don't have to tell her what has happened. She has already known it.
【解析】情态动词needn't/don't have to”不必“，所以答案是You needn't/don't have to tell her what has happened. She has already known it.
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