单项选择题
They went （） the schedule for the conference again and again until they felt satisfied with every detail of it.
A．out B．up C．over D．by
单项选择题 （） Hongkong is often regarded as （） international centre for business, finance and tourism.（）
单项选择题 John left home twenty minutes ago. It is usually half an hour's drive from his home to the office here. So he （） soon.
单项选择题 Many a man （） life is meaningless without a purpose.
