when must she go there还是when she must go there

when must she go to the school?请问这里的go to the school.the在这里不加行吗?when must she go to school when must she go there还是when she must go there When must she go to the library?句中为什么不用goes? She must be ___ when she hears the new. Shi must be ( )when she hears the news.(worry) When must she go to the library?是：什么时候她必须去图书馆?When must you and Sam see the dentist.意思是：你和萨姆什么时候必须去看牙医. He must come and worry her with question, just when she was busy cooking the dinner. 什么意思He must come and worry her with question, just when she was busy cooking the dinner. Of course,after I gave her my advice,she must go and do the opposite when did she go to the summer camp When you go into the museem,you must pay a____ to the notices on the wall When did she go there? Must we go to see a doctor at once when we have the flu?Yes,we must.是什么 The grade 6 girl must coin when her gets on the bus.打错了，是WHEN SHE everybody must go when the light turns red 这句话哪里错了?怎么改 We must be careful when you go _____（cross） the road. When you go across the road ,you must ( ) to look both ways,left and right.填空 someone must take care of the children when we go out.改被动语态 you must keep the door ___(close)when you go out. We must be very careful when we go across the m___ road