[单项选择]The world will be a better place (to live in) if we accept the principle (which) other animals have equal fights (to live) as (ourselves).（）
A. to live in
B. which
C. to live
D. ourselves

Ireland is the best place in the world to live for 2005, (51) a life quality ranking that appeared in Britain’s Economist magazine last week.
The ambitious (52) to compare happiness levels around the world is based on the principle that wealth is not the only (53) of human satisfaction and well-being. The index of 111 countries uses (54) on incomes, health, unemployment, climate, political stability, job security equality between men and women as well as what the magazine calls "freedom, family and community life".
Despite the bad weather troubled health service, traffic problems, and the high cost of living, Ireland scored an impressive 8.33 points (55) 10. That put it well ahead of second-place Switzerland, which managed 8.07. Zimbabwe(津巴布韦), troubled by political insecurity and hunger, is rated the lowest, (56) only 3.89 points.
"Although rising incomes and increased individual c
A. attempt 
B. attack 
C. attitude 
D. attraction