60.　　 The citizens held a _______ (示威游行) outside the city’s worst polluter yesterday.

59.　　 He was ____(逮捕) and charged with murder.

58.　　 The law requires equal treatment for all, _____(不顾，不管) of race, religion, or sex.

57.　　 Slavery was _____(废除) in the US in the 19^th century.

56.　　 Because of the long-time ____(分离) from other continents, Australia owns its special animals.