He devoted all his efforts _______ children.
A:educating
B:educate
C:education
D:to educating
我国的草地主要分布在( )
阅读古诗,回答问题。
夜坐
张耒
庭户无人秋月明,夜霜欲落气先清。
梧桐真不甘衰谢,数叶迎风尚有声。
The ball is in front of the dog. (对划线部分提问)
____