WERE YOU GOING TO THE LANGUAGE CENTER ______ I SAW YOU YESTERDAY M...

27. - 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

27.

Were you going to the language center ______ I saw you yesterday morning?

A. while

B. if

C. because

D. when