1 Must English children go to school when they are five?
When must English children go to school?
Who must go to school when they are five?
Must English children go to school when they are five or four?
English children must go to school when they are five, mustn't they?
2 Was the emphasis academic at Grammar schools?
What was academic at Grammar schools?
Was was academic at Grammar schools?
Was the emphasis academic at Grammar or Primary schools?
At Grammar schools the emphasis was academic, wasn't it?