I wonder if he （）ask his brother for help.A、need..B.needs C.need_英语解答

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,

人气：238 ℃　时间：2019-12-08 01:03:12

解答

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