To our surprise, the painting considered______ should have won the prize.
| A．being copied | B．having been copied | C．to have copied | D．to have been copied |
The manner in which a telephone is answered gives the image of the organization, so
polite and pleasant when answering the telephone.
| A．being | B．be | C．to be | D．having been |
With the country’s population increasing to 1.3 billion, many of China’s rivers, including the legendary Yellow River, .
| A．is drying up | B．will be drying up | C．h ad dried up |
D．are drying up |
I’m into the video game, it’s hard to think of anything else. All my focus is on finishing 
the story line.
| A．Unless | B．Once | C．Whether | D．Although |
We live in a world that is changing fast, one changes come at what seems to be an ever-increasing pace.
| A．Unless | B．Once | C．Whether | D．Although |
Panda is one of remaining endangered animals in the world.
| A．The; The | B．A; a | C．The; a | D．不填；the |