I have to do my homework after school[用do my homework提问]

答案:What do you have to do after school?
have to 这个词的疑问句语序会借助于do,如上句中的第一个do
对谓语动词的提问,我们常常需要补加do之类的词.如上句中的第二个do
再如:I watched TV last night.对watched TV提问就是:
What did you do last night?