A.the bad experience
B.the heavy furniture
C.the guy at the base
D.the vehicle he drove
A.doubtful
B.grateful
C.ashamed
D.worried
A.a distant memory
B.a terrible memory
C.a painful memory
D.a changeable memory
A.avoid a bad temper
B.feel happy with their life
C.practise creative thinking
D.improve their mental ability