-----Alice, you clean the blackboard today, ?
----- But I cleaned it yesterday.
A. won’t you
B. will you
C. didn’t you
D. don’t you
网友回答
A. won’t you
(答案→)B. will you
C. didn’t you
D. don’t you
解析：句意：---爱丽丝，你今天擦黑板行吗?—但是我昨天已经擦过去了。这里是反意疑问句，Alice是称呼，肯定的祈使句的反意疑问句，疑问部分用will you？根据句意故选B。