when must they go home对还是when do they must go home

when must they go home对还是when do they must go home when do they must go to home和when are they must go to home?有 They must go home before twelve. ______________?Must they __ they must go home now的一般疑问句,否定句和以when开头的特殊疑问句 They must go home now .做句型转换 When will ______ they go home?怎么填, Must they go home now?Must为什么可以引导疑问句?之类的还有什么词可以? They meet an old man when they go home.=They meet an old man They will go home They usually go home Let____(they)go home when must you come home?