Drivers must stop when the traffic lights _____ red．
| A．turn | B．will turn |
| C．turned | D．were turning |
22. The president ______ the new economic policy.
| A．announced | B．told | C．informed | D．Promised |
二、单项填空（本节有10小题，每小题1分，共10分）
21. Many people agree that ______ knowledge of English is a must in ______ international trade today.
| A．a; 不填 | B．the; an | C．the; the | D．不填; the |
－Did you have a good sleep last night?
－Yes, never sleep ____.
A. badly B. better
. worse D. best
China has a population of 1.3 billion, ____ it the largest country in the world by population.
A. making B. made
. makes D. to make
Most female workers in Beijing suffer from ____ connected to the global financial crisis, according to a recent survey.
A. curiosity B. eagerness
. thirst D. anxiety