________ THE END OF THE COURSE, THE STUDENTS HAVE TO TAKE AN EXAM...

12. - 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

12. ________ the end of the course, the students have to take an exam on four basic skills of the target

language.

A. In

B. At

C. On

D. To