祈使句的反意疑问句的用法1. 基本原则若陈述部分为祈使句，反意疑问句通常用will you, wont you, would you等：Mail the letter today, will you? 今天就把信发掉，好吗? Try to be back by two, wont you? 设法两点之前回来，好吗? If you want help, let me know, would you? 如果你需要帮助，告诉我，好吗?【注】若陈述部分为否定式，则反意疑问句部分只用will you：Dont forget to post the letter, will you? 请别忘了寄信。有时根据语境的需要，反意疑问句也可以用can you, cant you 等：Give me some cigarettes, can you? 给我些香烟，可以吗? Walk faster, cant you? 走快点，不行吗?一般说来，用will you, wont you, would you 等构成的反意疑问句语气较委婉。比较：Be q
