The price system is a complex network composed of the prices of all the products bought and sold in the economy as well as of a great number of services.
| A．the one | B．that | C．ones | D．those |
Isn’t it lovely to think that I ________ myself on the sunny beach tomorrow at this time.
| A．will enjoy | B．will be enjoying | C．am enjoying | D．shall enjoy |
— You must be looking forward to your trip to Sydney.
— Yes. I wait any longer.
| A．can't | B．mustn't | C．needn't | D．shouldn't |
most parents care about is to provide the best education for their children.
| A．That | B．How | C．What | D．Whether |
The dancers, all of _______ masks came off suddenly, gave us a great surprise.
| A．their | B．whose | C．which | D．whom |
The 30th Olympic Games, _______ between July 27 and August 12 in 2012, will take place in London.
| A．classified | B．assessed | C．scheduled | D．committed |