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 They must go home now .做句型转换They must go home now .变成一般疑问句,否定句,划线部分注：划线用when They must remember when they __(begin). when do they must go to home和when are they must go to home?有什么不同?还是有个是错的?是不是must是助动词，do也是助动词，一句中不能出现两个助动词？这样对吗？ When there is a green light,cars may go on.When there is a red light,cars must (s ).They must wait(u ) the red light changestogreen they like ice cream /Do they like ice cream?/What do they like?/They don’t like ice cream.the must go home now./ Must they go home now?/When must they go home?/They mustn’t go home now.这两段对话 为什么第一个用do 第二个不用呢? 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 In most countries __________(全世界),children must go to school when they are five or six years-old when must she go there还是when she must go there when did your father [ ] (到达)------At ten o'clockIn some countries ,women--------show their hair when they go out (选填can,can't,must ,mustn't) When they put they must have When they put the tables inthey must have taken the controls out. In britain many children ( )wear uniform when they go to schoolA.must B have to 两者选项有什么区别吗,我选A, When you go outing with your sisters,you must see to ________ that they are safe.A.everything B.it C.them D.yourself they usually ( ) (go) fishing when they lived there. children must be ____(dependence)when they grow up. THEY MUST GO HOME NOW怎么变成问句 把they must go now改为否定句,怎么改? They are thinking about when they will go.同义句They are thinking about______to go