单选题 ______ nothing to do with us.
  • A. What he did is
  • B. What he has done is
  • C. What did he do has
  • D. What has he done has
【正确答案】 B
【答案解析】[解析] 此题考查的是主语从句，根据句意“他所做的事情”，故引导词用what，而且主语从句应为陈述句式；根据题意应该表示“已经做过的事情”，故选择完成时态what he has done。