I was about to leave the office an unexpected visitors came.
| A．while | B．as | C．when | D．before |
. The drunk driver isfor the traffic jam yesterday.
| A．to blame; occurred | B．to blame; occurring |
| C．to be blamed; occurred | D．to be blamed; occurring |
The professor spoke so fast that I foundhim.
| A．it hard following | B．it being hard to follow |
| C．hard to follow | D．it hard to follow |
A plan has been put forwardmore graduates should go to work in the countryside this year.
| A．when | B．that | C．whether | D．how |
The little girl had a luckywhen the earthquake happened.
| A．chance | B．surprise | C．hope | D．escape |
2008 is a special number,I think, that will never be forgotten by the Chinese people.
| A．one | B．it | C．the one | D．what |