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．give detail B．sum up the story C．capture the reader’s interest D．elaborate upon a point
A．the city is so large and so high B．there is no traffic C．we don’t know the road D．the city is so large and the traffic is so heavy