Once harm is ______ to the eco-system, all species will ______ , including man himself .
| A．made; be in danger |
| B．done; be dangerous |
| C．caused; be endangered |
| D．done; be in danger |
The road to the mountain has been _____ by the heavy snow for almost a month.
| A．cut down | B．cut off | C．cut up | D．cut in |
If you have any difficulty with this paper, you can _______ your notebooks.
| A．focus on | B．carry on | C．refer to | D．go with |
Although it has been buried underground for over 1,000 years, the ancient queen’s body remains well _____.
| A．defended | B．preserved | C．guarded | D．organized |
The salespeople said they hadn’t overcharged customers, but the police’s report showed that the practice did ______.
| A．appear | B．arise | C．perform | D．exist |
Although the necklace is made of glass, it really _________ me.
| A．adapts to | B．occurs to | C．appeals to | D．prefer to |