题干
—How often do I need to feed the dog?
—It food everyday,or it will be hungry.
A：must give
B：must be give
C：must be given
D：must be gave
答案(点此获取答案解析）
C
，方程的根为（ ）
健全基本公共服务体系，推进基本公共服务均等化。这有利于