注意:此页面搜索的是所有试题
题目内容
(平顶山学院-行政管理-大学英语2)
(单选题) It’s necessary ______ us to keep our pets clean everyday. ( )(本题1.5分)
A. of
B. for
C. with
D. between
A. of
B. for
C. with
D. between
参考答案