Question

----              go to the city park with your best friend tomorrow?
---- Sounds great!
A. Why not you         B. Why don’t          C. Why not

Answer 1

C

试题分析：句意：明天为什么不和你最好的朋友去城市公园？挺起来很好！why not+动词原形="why" don’t you +动词原形。结合句意，故选C。