单选题
It seems to me that the Americans are a highly______people. Most of them like to travel whenever they get the chance.
【正确答案】
D
【答案解析】civilized“文明的”；luxury“奢侈的；豪华的”；ambitious“有雄心的，有抱负的；热望的”；mobile“流动的；运动的”，根据题意Most of them like to travel whenever they get the chance，应选D。