I REGRET (A) INFORMING (B) YOU THAT WE CANNOT (C) ACCEPT YOUR APPL...

20. - 25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN
25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN

20.

I regret (A) informing (B) you that we cannot (C) accept your application. (D)