题目内容
（请给出正确答案）
[主观题]
Which of the following is a bad habit of the executive passengers that frustrates
the airlines？
A．they do not book their seats in advance
B．they do not sit on the seats they are supposed to take
C．they do not travel on the flight they have booked
D．they do not pay in advance for the seats they book．
如搜索结果不匹配，请 联系老师 获取答案
