Task 4 Directions: The following is a list of terms related to airlines service. After reading it, you are required to find the items equivalent to (与……等同) those given in Chinese in the table below. Then you should put the corresponding letters in brackets on the Answer Sheet, numbered 6 through 10. A—Frequent flight passenger B—Flight number C—Boarding time D—Starting airport E—Ground service F—Delayed flight G—Ticketing service H—Ticket delivery I—Online ticket booking J—Luggage check-in K—Self check-in service L--Seat selection M—Flight punctuality N—Ticket refund O—Baggage claim P—Baggage compensation Q—First class 6.______行李托运 ______登机时间 7.______售票服务 ______常旅客 8.______始发机场 ______航班延误 9.______座位选择 ______送票服务 10.______行李提取 ______航班号