单项选择题
A.birds are important in our lives B.animals are important in our lives C.nature is important in our lives D.Audubon was especially interested in birds
A.they try to get the things back B.they know their things have been stolen C.they know their things are at the police station D.they tell the police the whereabouts of the shown things
A.Hurricanes Irene and Floyd B.Hurricanes Floyd and Carla C.an eruption from a volcano D.deforestation of trees