you must be home at half past ten这里的be是什么作用啊at half past ten这个没学过,

you must be home at one.be home be home ”能不能换做at home you must be home at be home be home能不能换成arrive home?you must arrive home at ten与you must be home at ten在意思上有什么区别? you must be home at half past ten.是否也可以you must come home at half past ten. You must be home at half pass ten.可以以把be改为come吗? you must be home at half past ten.为什么不用come? You must be home at half past ten.为什么要用be,be是在什么情况下用的? You must be home at .be home 啥意思,为什么用Be Be不是跟am is are 它也有意思? He must be at home.为什么用be? You must be home at half past ten.为什么中间要用BE,而不是具体的BE动词（are）,也可以用COME HOME吧 You must be home at half past ten.和 You must come home at half past ten.这两个句子一个用了be,一个用了come,它们有何区别? jim must be at home last night,___he?反义疑问句 He must be at home.改为否定推测 he must be at home 如何构成反意疑问句 He must be at home 的一般疑问句 The l------is on ,He must be at home. You must be excellent at sports.翻译 You must be at least 13 to you must be home和you must come home一样吗