Good habits of exams decide (决定) your grades. Every time you are having an English exam, you should _____ to get a better mark.

① copy others' answers

② be careful with the meaning of every sentence

③finish the test paper in order and spend only one minute filling out (填写) the answer paper

④ make an outline (提纲) for the composition (写作) before writing it

⑤ go over your answer paper carefully before handing it in

A、①③⑤

B、②④⑤

C、②③④