—It’s a long time since I saw my sister.
— her this weekend?
A. Why not visit
B. Why not to visit
C. Why not visiting
D. Why don’t visit
网友回答
(答案→)A. Why not visit
B. Why not to visit
C. Why not visiting
D. Why don’t visit
解析：表达建议和劝告用why not do sth. 或者why don’t you do sth.。