A．looked very serious
B．thought they would be rich
C．began to think about their design
D．began to play games

A．loved their own designs more
B．thought they had a fair chance
C．put their own designs in.a comer
D．thought they would not win the prize

A．enjoyed grown-up tricks very much.
B．loved poster competitions very much
C．felt,surprised to win the competition
D．became wise and rich after the competition