--- Alice , you feed the bird today , ?
--- But I fed it yesterday .
A. do you
B. will you
C. didn't
D. don't you
网友回答
A. do you
(答案→)B. will you
C. didn't
D. don't you
解析：此题易受you feed the bird today中的you的影响，认为不是祈使句。但祈使句并非都无主语，为了加强语气，指明向谁提出请求或命令，引起听话者的注意时，可说出主语。所以正确答案是B而不是D.