答案：D

考查虚拟语气的用法：Had Wang Ling received six more votes in the election of out class, ="if" Wang Ling had received six more votes in the election of out class,是虚拟条件句，主句的时间是now和现在相反的情况用would do，句意是：要是王玲在班级选举中再得6张选票，她现在就是我们班长了。选D。