Investigators agreed that passengers on the airliner __________ at the very moment of the
A. ought to die
B. must have died
C. must be dying
D. should have died
正确答案是()
A. ahead
B. advance
C. front
D. forward
正确答案是()
A. receive
B. admit
C. consent
D. confess
正确答案是()
A. vehicle
B. way
C. medium
D. instrument