A professor of biology gave a talk to more than 1000 students on elephants living conditions and the dangers _______ them.
| A．face | B．facing | C．faced | D．are facing |
No one knows what effects the GM material might have ________the food chain.
| A．on | B．for | C．to | D．with |
If you get the job, ________yourself to it and you will be rewarded.
| A．devoting | B．devoted |
| C．to devote | D．devote |
---It has been decades since we last met.
---But I still remember the graduation party, believe it or not, ________we toasted for our separation and reunion.
| A．that | B．which | C．where | D．what |
According to statistics, a man is _________to die of skin cancer as a woman.
| A．more than twice as likely |
| B．twice more than as likely |
| C．as likely more than twice |
| D．twice more than likely as |
________in the city for 10 years, he got tired of the noisy life.
| A．To live | B．Lived |
| C．Living | D．Having lived |