单项选择题
A. He could work as hard as possible. B. He should go to work on time in spite of illness. C. He should never fail to go to work. D. He should be respectful and loyal to the people he works for.
A. They have no doubts about them. B. They hold different views about them. C. They approve of them. D. They avoid talking about them.
A. It aims to exert impact on international organization. B. It aims to reduce the impact of transnational organized crime and its influence on U. S. C. It aims to keep the United States safe from the threat of terrorism. D. It aims to maintain international peace and security.