The announcement —all flights were cancelled because of bad

The announcement —all flights were cancelled because of bad __the announcement all flights were cancelled because of bad 改错题:All flights having been cancelled because of the storm,t All flights _________ because of the snowstorm,many passenge All flights ________ because of the terrible weather,they ha 3.All flights _______ because of the snowstorm,many All flights ______ because of the snowstorm,many passengers All flights-------because of the snowstorm,many passenger ha all flights ____ because of the heavy snows ,hunderds of peo 问一道四级英语选择题All the flights( )because of the snowstorm,we had All the flights ______ because of the snowstorm,we had to ta All flights ___ because of the heavy snow,we had to take the