We must go to school on time变成一般疑问句

问题描述:

We must go to school on time变成一般疑问句

Shall we go to school on time?

Need we go to school on time

含有must的肯定句变否定句时,才把must改成needn't或don't have to.
但是变一般疑问句时,还是把must提前即可,再把第一人称we改成you,即正确答案为:
Must you go to school on time?