A good way to pass an exam is to work hard every day in the 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 are taking an exam, don't only learn rules of　grammar (语法规则) . Try to read stories in English and speak in English whenever you can. A few days before the exam, you should start going to bed early. Do not stay up late at night to study and learn things. Before you start the exam, read carefully over the question paper. Try to understand the exact meaning of each question before you pick up your pen to write. When you have at last finished your exam, read over your answer. Correct any mistakes which you see and make sure that you have not missed anything out.

根据短文内容判断正误，正确的打（A），错误的打（B）

小题1:The best way to pass an exam is not to work hard all the year around.

小题2:You should read lots of English stories whenever you can.

小题3:You should go to bed early every night.

小题4:You should read over the question paper very carefully before you begin to  answer it.

小题5:You should check your answers when you finish the paper.

甲替乙保管手表，甲向丙借钱500元，对丙说："把我的表质押给你"，丙接受。根据已知的条件，下列哪一项是正确的

A．人民法院可认定质押合同成立但并不生效

B．该质押合同为有效合同

C．该质押合同是未成立的合同

D．该质押合同是可追认的合同，经追认才能有效