People tend to live more happily and lon
题型:选择题
问题:
People tend to live more happily and longer if they are ________ about life.
A.pessimistic
B.enthusiastic
C.optimistic
D.terrific
People tend to live more happily and longer if they are ________ about life.
A.pessimistic
B.enthusiastic
C.optimistic
D.terrific