单选题 If the horse wins tomorrow, he ______ twenty races in the past three years.
A. will win B. will have won
C. would have won D. has won

【正确答案】 B
【答案解析】[解析] 条件状语从句中点明了时间是明天，即“到明天为止”，故主句应用将来完成时。故选B。