【单选题】25、The flight scheduled ______ at 9 a. m. was delayed four hours due to the bad weather. A. to take off B. take off C. taking off D. to be taken off
【单选题】听力原文:M: When does the plane take off? F: It has been arranged to take off at four fifteen but it's delayed thirty minutes. •For questions 1-8 you will hear eight short recordings. •For each question m...