Finding information in today’s world is easy. The ______ is how you can tell if the information you get is useful or not.
| A．knowledge | B．ability |
| C．competition | D．challenge |
— Have you got any information about your missing dog from the police?
— No. I ______. The police say they’ll let me know when there is any news.
| A．waited | B．was waiting | C．have waited | D．am waiting |
It is reported that China will not buy the Euro debt until some thorough research ______.
| A．will be done | B．had been done |
| C．has been done | D．will have been done |
By no means true that all native speakers of English know their own language very well．
| A．is that | B．that is | C．is it | D．it is |
In ______ eyes of my parents, a knowledge of English is ______ must in the world today.
| A．the;不填 | B．the; a | C．不填; a | D．不填;不填 |
--Spacecraft "Discovery" has failed in the course of launch.
--_____? They have been preparing for the test.
| A．How come? | B．When | C．What for | D．Why not |