第二节：语法和词汇知识（共15小题，每小题1分，满分15分）
6. We have every reason to believe that ______ 2012 London Olympic Games will be ______ success.
A. / ； a B. the ；/ C. the ；a D. a ；a
7. I have some doubt ____ his words, but _______ is no doubt that he has passed the exam.
A．about; it B．of; that C．about; there D．to; he
