A． one is born optimistic or pessimistic
B． pessimism is inherited
C． optimism is acquired when one is very young
D． pessimism is a long lasting habit
A． Optimists live a more wealthy life than pessimist
B． Optimism can help explain the setbacks while pessimism canno
C． Pessimists attribute failure to temporary causes, but optimists don'
D． Pessimists usually blame themselves for their mistakes, while optimists don'
A． 6.
B． 9.
C． 10.
D． 16.
A． English universities
B． American universities
C． Puritan universities
D． its own