Airlines will ______ to allow for the high number of ______ , but must exercise caution.
A.overbook, independent travelers
B.overbook, no-shows
C.underbook, business travelers
D.underbook, frequent travelers
正确答案是B
Airlines will ______ to allow for the high number of ______ , but must exercise caution.
A.overbook, independent travelers
B.overbook, no-shows
C.underbook, business travelers
D.underbook, frequent travelers
正确答案是B