I wonder if he ( )ask his brother for help.
问题描述:
I wonder if he ( )ask his brother for help.
A、need..
B.needs
C.need to
D.ought
应该选那个?请说明一下理由,
答
need作行为动词 有人称和数的变化
所以C排除
need作情态动词 只有时态变化 而没有人称和数的变化
所以B排除
D选项不符合句中意思
所以应该选A吧