THEY ________ GOOD PREPARATIONS BEFORE THEY _______ THEIR FINAL E...

13. - 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

13. They ________ good preparations before they _______ their final examination yesterday.

A. made / had taken

B. have made / take

C. had made / took

D. will have made / have taken