---Have the papers been graded? --- Yes but I regret that you failed it.A. to sayB. sayin

问题补充：

---Have the papers been graded?

--- Yes, but I regret that you failed it.

A. to say

B. saying

C. in saying

D. I say

答案：

(答案→)A. to say

B. saying

C. in saying

D. I say

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