As the world’s population continues to grow, the ___of food becomes more and more of a concern.
| A．worth | B．supply | C．package | D．list |
he steps on the stage,he will sing the song which made him famous two years ago.
| A．Many times | B．In no time |
| C．Every time | D．All the time |
This year’s fall in profits was not unexpected ,it is very disappointing.
| A．Otherwise | B．But |
| C．However | D．Nevertheless |
giving a general introduction to computers,the course also provides practical experience.
| A．In exchange for | B．Except for |
| C．In addition to | D．Due to |
Let’s the matter until the next meeting,because it’s too late to begin a discussion on it now.
| A．hold over | B．hold out |
| C．hold down | D．hold back |
—You were out when I dropped in at your house.
—Oh,Ifor a friend from England at the airport.
| A．was waiting | B．had waited |
| C．am waiting | D．have waited |