问题
选择题
------- Jack, you erase the blackboard today, __________?
------- But I did it yesterday.
A．will you
B．do you
C．would you
D．don’t you
答案
：A
：考查反义疑问句。Jack, you erase the blackboard today是一个祈使句，只是把主语给出来了。祈使句的反义疑问句使用will you,或者won’t you.故A正确。