单项选择题
A．it was signed by the 50 original member countries. B．it was approved by the founders and other member countries. C．it was approved by the founding members. D．it was signed by the founding members.
A．Iraq debts. B．WTO talks. C．Financial disasters. D．Possible sanctions.
A．The possibility of discounts depends on a travel agent’s volume of business. B．Longer flights to the same destination may be cheaper. C．It is advisable to plan every detail of a trip in advance. D．Arranging for stopovers can avoid overnight travel.