都不正确
应该是：He wants to ask you for help.
不明白的再问哟,请及时采纳,多谢!题目是用所给单词的适当形式填空He wants ()(ask)for your help.我的疑问主要是前面有wants了，后面的ask还要不要加s？He wants ( to ask)for your help. want to do sth. 想做某事， want 已经体现了第三人称单数，所以ask就不能加s