Although all the passengers _____ had attempted to escape from the burning bus, only about twenty of them succeeded in getting out of the bus without being badly hurt in the end.
A. board B. aboard C. broad D. abroad
Although all the passengers _____ had attempted to escape from the burning bus, only about twenty of them succeeded in getting out of the bus without being badly hurt in the end.
A. board B. aboard C. broad D. abroad