58．From the last sentence of the passage, we know that 　　　．

　 　　 A．they were sad because the young turtles were foolish

　 　　 B．they felt very tired with the still-clear light shining

　　　 C．they came to know that their rush to help did more harm than good

　 　　 D．they regretted not killing the meat-eating birds

57．In fact，the first baby turtle worked as　　　　 ．

　 　 A．a clever spy to attract the birds outside 　 B．one to get information outside the nest

　　 C．a leader to come out first 　　　　　　　　 D．a brave guard to fight against the birds

56．At first, the guide would not help the young turtle out of the nest because　　　 ．

　 　 A．he wouldn’t mind others’business

　 　 B．he thought the young turtle liked to dash into the sea

　 　 C．he wanted the young turtles to take their own course

　 　 D．he thought the young turtle should have come out earlier

54．A．other　　　　　　　 B．new　　　　　　　　 C．second-hand　 D．spare

53．A．repair　　　　　　 B．remove　　　　　 C．throw　　　　　　 D．check

52．A．tyre　　　　　　　　 B．chair　　　　　　　 C．car　　　　　　　　 D．leg

51．A．came　　　　　　　 B．recovered　　　　 C．learned　　　　　 D．turned

50．A．pleasure　　　　 B．death　　　　　　　 C．shock　　　　　　 D．wake

49．A．trapped　　　　　 B．locked　　　　　　 C．thrown　　　　　 D．found