选择题:Sometimes a bus ____ gets on the bus to check the tickets. 题目分类:专业英语八级 题目类型:选择题 号外号外:注册会员即送体验阅读点! 题目内容: Sometimes a bus ____ gets on the bus to check the tickets. A. agent B. officer C. conductor D. inspector 参考答案:【答案仅供学习,请勿对照自行用药等】 答案解析: