Returning to the room, _____.
| A．the book was lost | B．I found the book missing |
| C．the book was missing | D．I found the losing book |
We decided to hold a party to________the victory.
| A．celebrate |
| B．congratulate |
| C．welcome |
| D．appreciate |
The flowers his friend gave him will die unless ________ every day.
| A．watered |
| B．watering |
| C．water |
| D．to water |
In many American universities，the total work for a degree ________ thirtysix courses，each ________ for one semester(学期)．
| A．is consisted of；lasts |
| B．consists of；lasting |
| C．is made up of；lasts |
| D．make up of；lasting |
Like some of my classmates，I cannot live up to my teachers’ expectations；________I let them down.
| A．in other words |
| B．after all |
| C．what’s more |
| D．more or less |
There was a ________ expression on his face.Maybe he had finished his work successfully.
| A．relaxing |
| B．relaxed |
| C．puzzled |
| D．puzzling |