20. The rest of his life was devoted ___ pollution ___more happily .
| A．to prevent , to live | B．to protecting , from living |
| C．to protect , from living | D．to preventing , to live |
In order to keep fit, he is trying to ________ cigarettes and beer every day.
| A．cut back on | B．cut off | C．cut up | D．cut in |
Among ________ writers in the world, only a few will become famous later on in life, and ______ writer is Mo Yan, who has received the Nobel Prize for literature recently.
| A．such many; such a | B．many such; such one |
| C．so many; one such | D．so many; such one |
In the past two months, he ______ himself to the way of life in the new school and how he wishes he _______ the teacher’s advice.
| A．hasn’t adapted; had adopted | B．didn’t adapt; has adopted |
| C．didn’t adopt; has adapted | D．hasn’t adopted; had adapted |
As was recorded in history , Diaoyu Island has been _________ part of China.
| A．regarded to be | B．seen as |
| C．thought as | D．thought of to be |
With efforts _______ conservation, we may believe that people enjoy a healthy life without the environment around them ________.
| A．focused on; suffering | B．focusing on; suffering |
| C．focused on; being suffered | D．focusing on; suffered |