傅雷家书3000字读后感:HELP?????????????????求救!

来源：百度文库 编辑：高校问答 时间：2024/05/09 04:55:09
I had to see the dentist.的一般疑问句怎么变.还有:在哪有助动词的练习?
I had to see the dentist
还有否定句!!!!

had to 是一个词组，必须的意思 可以看作是一般动词，也可以看作是情态动词~~~
可以改为
1、Did I have to see the dentist?
2、Had to see the dentist?

Did you have to see the dentist?
不好意思，我不知道助动词。

I didn't have to see the dentist.

did I have to see the dentist?

Did you have to see the dentist?

HELP！！！~~~~ HELP!!!! HELP！！！ HELP~~~~~~~~~~~~~~~~~~~ help~~~~~~~!!! help!!!!! Help!~~~ help !!! HELP！！！ HELP!!!!!!!!!!!!