分类：教育/科学-学习帮助
问题：[疑难]haveto和hadbetter1\他们构成的反意疑问句 
1\他们构成的反意疑问句、一般疑问句、否定句应该如何去改？？例如：He has to go to b.      He had better go to bed2\ had better 的过去式应该是怎样的？例如：He said he -------(had better) go to bed.
回答：He has to go to bed.(他不得不go to bed.)

反意疑问句@ He has to go to bed.doesn't he?

一般疑问句@ Does he have to go to bed?

否定句@ He hasn't to go to bed.=He don't need to go to bed.
解释为:他不需要go to bed


He had better go to bed.
反意疑问句@He had better go to bed,hadn't he?


2\ had better 的过去式应该是怎样的？
He said he ____had better______(had better) go to bed.