虚拟语气——When will your father come back home?——If I （know）,I （

My mother asks( )I will come back home for dinner.用if,when,t I don,t know if your father__________(comes back/will come b I don't know when he _(come)back.when he _(come)back,I will I don't know if he will ___（come）back.If he___（come）please t When did your father come back home from Shanghai?___ When will your father come back from Beijig? ________ when will your father come back?________three days. I don't know when he ＿（come）back. haha,me too.i will definitely let you know when i come back I don't know when I will come back改为同义句 if i do this you will 算不算虚拟语气 If I find the purse,I will give it to you.（变为虚拟语气）