单项选择题
A．a chimp B．Flores Human C．Homo sapiens D．Homo erectus
A．Half of the dinosaurs lived alone. B．Most dinosaurs moved long distances. C．Many dinosaurs settled in the north. D．Some dinosaurs lived in big groups.
A. Hold the line B. flight number C. ask a question D. To New York E. May I have you name F. reconfirm my seat G. please check in H. On May 11th