--The wall of your room doesn't look nice. ---I wish I ___ it green.
A. shouldn't have painted B. wouldn't painted C.hadn;t painted D. don't paint
--The wall of your room doesn't look nice. ---I wish I ___ it green.
A. shouldn't have painted B. wouldn't painted C.hadn;t painted D. don't paint
C
wish后面接从句用虚拟语气，这里表示与过去事实相反，所以选C。