57、If his father ___ him to go into law, he would have pursued his dream of being an doctor.(1分)A. has not persuadedB. did not persuadedC. had not persuadedD. does not persuade

本题考查虚拟语气的用法，核心在于判断条件句中动词的正确形式。

• 主句为would have pursued，表示对过去事实的虚拟（即假设与过去事实相反）。
• 从句需使用虚拟语气的过去完成时（had + 过去分词）来匹配主句时态。
• 错误选项中，A、D时态错误，B存在语法错误，只有C符合虚拟语气规则。

虚拟语气规则回顾

当主句描述对过去事实的虚拟（如would have done），条件句需用虚拟过去完成时（had + 过去分词）。
示例：

• If she had not missed the bus, she would have arrived earlier.

选项分析

• A. has not persuaded
  现在完成时（has done）与主句的过去虚拟不匹配。
• B. did not persuaded
  1. did not后需接动词原形，persuaded是过去式，语法错误。
  2. 即使修正为did not persuade，仍为过去时，无法表达更早的假设。
• C. had not persuaded
  过去完成时（had done）正确体现对过去的假设，与主句时态一致。
• D. does not persuade
  现在时（does not do）与主句的过去虚拟矛盾。