When I got home last night, I was frightened to find that in front of my door____.
| A．sit a dog | B．sat a dog | C．was a dog seated | D．did a dog sit |
The children have been playing with my hat and they have knocked it out of __________.
| A．order |
| B．date |
| C．balance |
| D．shape |
This condition __________ urgent treatment.
这种情况得紧急处理。
__________ in the school regulations that students should not wear long hair or jewels.
| A．It is required |
| B．What is required |
| C．What requires |
| D．It required |
Teachers required that all the students __________ their homework all alone.
| A．must finish |
| B．would finish |
| C．had to finish |
| D．finish |
We can see monuments here and there. Those who have made a great __________ to human beings and society will never be forgotten.
| A．advance |
| B．progress |
| C．contribution |
| D．achievement |