you mustn't be home at half past ten这句中的be是什么意思,可否不加?I can't

you mustn't be home at half past ten这句中的be是什么意思,可否不加?I can't 1 you mustn't come home late.you must be home at half past t 一.You mustn't come home late. You must be home at half past you must be home at half past ten. er,at about half past ten .i think you were not ay home at t You must be home at half past ten.和 You must come home at ha you must be home at half past ten.是否也可以you must come home at 英语问问问you must be home at half past ten 这个句子 中的be 我可不可以理解为：ho you must be home at half past ten.为什么不用come? Tom _______(can’t/mustn't) be at home .he said he would go t i can't get home( )half past ten 括号里是什么 can't be ,mustn't be