It is known to everyone that no smoking ______ （）in the library．

•It is known to everyone that English plays an important role in applying for a position with high pay in big firms. •It is advisable that you should take care of yourself in your everyday life. •It is suggested that the government should make efforts to set aside an appropriate fund for the welfare of the handicapped. •It is essential that effective measures should be taken to remove the conditions which lead to inequality, unfairness and concealment in competition. •It is self-evident that education of the young is vital to the future of a country.

A、/

B、on

C、for

D、in

I’m a graduate student in the US, and to make enough money to pay for my rent and food, I have to work as a guard at the university library at night. Last week one of my friends, Lin, came to the library after hours. He told me he had left his notebook in the library and needed it to study for a test the next day. I told Lin that according to the rules I was’t supposed to let anyone in, but he begged me and said that if he didn’t get his notes there was no way he could pass the test. He was my good friend and I knew he wouldn’t steal anything. I also didn’t feel like I could say no, so I let him in. Unfortunately, just then my supervisor came by and saw Lin going in, so he stopped Lin and then started bawling me out in front of Lin for not following the rules. I tried to explain the situation, but that only seemed to make my supervisor more angry. He said it didn’t matter if Lin was my friend or not, so I just shut up and let him scold me. I realize I broke a rule, but I know Lin and trust him, and letting him in wasn’t the same thing as letting in a stranger, I think my supervisor was very unreasonable to be so picky and critical, and I don’t think he should have yelled at me, especially in front of Lin. Why could’t he understand why I let Lin in?

B．创造性地发展了马克思主义的国家学说

C．有利于争取我国所需要的和平的国际环境与国内环境

D．为解决国际争端和历史遗留问题提供了现成模式

B．B市法院

C．C市法院

D．D市法院