--I have too much housework to do at home! -- ask your husband for help?
A. You could
B. Why don’t
C. Why not
D. How about
网友回答
A. You could
B. Why don’t
(答案→)C. Why not
D. How about
解析：本题考查Why not的用法。whynot后面要跟动词原形= Why don’t you do sth 为什么不去做某事……。通常用于向别人提建议。How about后面要跟动词ing形式。