单项选择题
A.were very rich B.lived in poverty C.did not own automobiles D.had own automobiles
A.The small Number of newborn babies. B.The changing social situation of women. C.The high prices of houses and education. D.The necessary steps of Asian governments.
A.part of a historical cave system B.the biggest underground lake in the world C.listed in the Guinness Book of World Records D.the largest body of water in Tennessee