这篇阅读理解难度不大,但是有些题目有些迷惑,麻烦分析下答案呢

这篇阅读理解难度不大,但是有些题目有些迷惑,麻烦分析下答案呢
A good way to pass an exam is to work hard every day in a year.You may fail in an exam if you are lazy for most of the year and then work hard only a few days before the exam.If you want to be good at English,you have to read stories in English and speak English as much as possible.A few days before the exam you should go to bed early.Do not stay up late for the exam.Before you start the exam,read carefully over the question paper,try to understand the exact meaning of each question.When you have at last finished your exam,read over your answers.Correct the mistakes if there are any and be sure that you have not missed anything out.
1.How can we do well in exams?
A.We should work hard every day in the year.
B.We should go to bed early a few days before an exam.
C.We should read over the answers before we hand in our papers.
D.All of the above.
2.Make sure that you _______ before you hand in your paper.
A.remember rules of grammar
B.have thought over and over again
C.answered all the questions
D.have read stories in English