了解对方（）包括：车票、机票、返程，切勿擅自改时间。
A.行程
B.开支
C.游玩
D.会议
参考答案：A
With real estate （房地产）______ in economy, a lot of rich farmland had to ______ new houses and offices in the area.
A．leading the way; make way for
B．led the way; made the way
C．to lead the way; be made the way for
D．leading way; be made the way for
为什么会发生瓦斯喷出？
