—Can sixteen-year-olds drive their cars to school?

—No. They shouldn't _____ to drive because they are not serious enough. [ ]

A. allow

B. allowed

C. be allowed

D. have allowed

2007年7月，布什邀普京到其海边祖屋举行了一场非正式的“家庭式峰会”，被媒体戏称为“龙虾峰会”，某报由此刊载了下面一幅漫画。漫画体现了

A．俄国在削减战略核武器上作出重大让步

B．美俄在谈笑风生中仍暗藏较量

C．美国在国际重大事务中发挥了主导作用

D．美俄两国在联合国框架内议事