IF THE LECTURER LAST NIGHT __________DR. MASON, I WOULD HAVE LISTEN...

9. - 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

9. If the lecturer last night __________Dr. Mason, I would have listened carefully.

A. were

B. would be

C. was

D. had been