His arm is all right.He _ go and see the doctor.A.has not to B.don't have to C.haven't to D.doesn't have to
问题描述：
His arm is all right.He _ go and see the doctor.
A.has not to B.don't have to C.haven't to D.doesn't have to
答
选第四个，have to 是不得不的意思，don't have to 是没有必要的意思，是固定词组，在这里由于主语是he，是第三人称单数，所以用doesn't ，在以后学英语中用到的很多，希望你能记住它。 谢谢
答
D
have在此不是助动词，因此正规用法是doesn't have to
答
D doesn't have to 没必要
不明白的再问哟,请及时采纳,多谢!
答
d