问题
选择题
Every possible means _____. However, nothing can _____ him dying of lung cancer. |
A. has tried; stop B. have tried; keep C. has been tried; prevent D. have been tried; stop |
答案
答案:C
Every possible means _____. However, nothing can _____ him dying of lung cancer. |
A. has tried; stop B. have tried; keep C. has been tried; prevent D. have been tried; stop |
答案:C