单选题 You ______ the manager anything. It was none of his business.
  • [A] needn't have told
  • [B] needn't tell
  • [C] mustn't have told
  • [D] mustn't tell


【正确答案】 A
【答案解析】[名师精解] needn't+动词完成式，表示做了不必要做的事。
[解题秘籍] needn't do和needn't have done的区别在于：前者还没做，后者已经做了。