— Have you got your result of the final? 

— Not yet. I was told that the papers ______. [ ]

A. were not grading

B. have already been graded

C. were still being graded

D. have not grading

编制和修订城市总体规划中，居住用地占建设用地的比例应为（）。

A.28%～38%

B.25%～35%

C.22%～33%

D.20%～32%