—How did the global financial crisis ________？
—I’m not quite sure. Anyhow, it is a very important problem facing us.
| A．come up | B．come about |
| C．come along | D．come around |
It is reported that two young officer gave their life in solving the incident. Don't you think the _______ is too great?
| A．value |
| B．cost |
| C．risk |
| D．challenge |
With our class teacher _______into the class-room, immediately attracting our attention.
| A．came a pretty girl |
| B．did a pretty girl came |
| C．did come a pretty girl |
| D．was coming a pretty girl |
As we all know, improving one's reading ability _______ speed and comprehension.
| A．covers |
| B．contains |
| C．refers |
| D．involves |
You _______things about. Look, what a mess in your room!
| A．always throw |
| B．have always thrown |
| C．are always throwing |
| D．have always been throwing |
As far as I am concerned, English can be _______a useful tool rather than just a language.
| A．thought |
| B．thought as |
| C．thought of |
| D．thought of as |