◎ 题干
They usually go home _________.  
[     ]
A. by a bus
B. on a bus
C. by bus
D. on bus
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“They usually go home _________. [ ]A. by a busB. on a busC. by busD. on bus…”主要考查了你对  【介词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。