He was _________down for several days after he heard the bad news .
| A．broken | B．cast | C．cut | D．discouraged |
Steve wanted to play a trick Tom, but gave himself by laughing.
| A．on; over | B．with; away | C．with; on | D．on; away |
________ anything like this style of architecture before, we thought we were looking at giant sculptures, not buildings.
| A．We had never seen | B．Never having seen |
| C．Never being seen | D．Never had we seen |
Whenever Steve sang in the shower, his voice _______ throughout the house.
| A．has rung | B．would ring | C．was ringing | D．had rung |
The government is aiming to reduce the unemployment, but it’s quite _______ to have a job at all these days.
| A．anything | B．something | C．somewhere | D．nothing |
Most experts agree that human activities such as the clearing of large areas of forests, and farming on a large scale _________ the problem of global warming.
| A．is leading to | B．is resulting in | C．are contributing to | D．are owing to |