◎ 题干
It's polite            you            here in time.
[     ]
A. of, to come
B. of, coming
C. for, to come
D. for, coming
◎ 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“It's polite you here in time. [ ]A. of, to come B. of, comingC. for, to comeD. for, coming …”主要考查了你对  【不定式】【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。