We don’t believe he will come here on time, ________?

— You aren’ t a student , are you ? — _____ , don’ t you remember _____ me in the classroom ten minutes ago .

I don’t think you can finish the work in such a short time, __________?

-The captain（船长）of the Sewol ferry（岁月号）hardly do anything to help the passengers on the ferry。          ？-              ，so over two hundred people lost their lives in the accident。