—What do you think of Ann?
—Ann is so careful that she always goes over her exercises to ______ there are no mistakes.
A.look for | B.make sure | C.find out | D.think about |
—What do you think of Ann?
—Ann is so careful that she always goes over her exercises to ______ there are no mistakes.
A.look for | B.make sure | C.find out | D.think about |