单项选择题
As the director can't come to the reception, I'm representing the company（）
A．on his account B．on his behalf C．for his part D．in his interest
单项选择题 The award ceremony will be the（）of the inaugural Singapore International Water Week that is held from 23 to 27 June 2008
单项选择题 Some authorities trace the jury system to Anglo Saxon or even more（）Germanic times.
单项选择题 The flashing red light served as a （）of danger ahead
