单项选择题

Water is ______ hydrogen and oxygen.

A. made up
B. made up of
C. made by
D. making by
<上一题 目录 下一题>
热门 试题

单项选择题
Children should be taught how to get along with ______
A. another
B. other
C. others
D. any other
单项选择题
They talked and talked as if they ______ never meet again.
A. will
B. would
C. should
D. shall
相关试题