单项选择题
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
A．too much food and water in the body B．a lack of oxygen in the blood C．seeing or thinking about food D．a lack of certain chemicals in the blood
A．in fact B．eventually C．practically D．as a matter