Has he come back?对么?不用came?

Has he come back?对么?不用came? To my s________,he has come back. tell me when he will come back这句话对么 He has just come back.现在完成时.He has just come back.为什么不是用came?has/have+动词过去式? He has h_____ that Miss White will come back he has not come back 反意疑问句是什么 My grandfather_____.He is still very tireds.a.has just come back b.has already come back c. have yet come backd.have just come back come back同义词不是go back,那是反义的例：Maybe he has come back now.(同义句）Perhaps he has ------ back now. 请问it seems that he has come back 同义句 he ____ _____ come back 的答案是什么,为什么? he--in there days.a.has come back b.came back c.will come back d.is going to coming back I don‘t know how soon he will come back语法对么= =嗯 要说理由 = = He____England.He'll be come back soon.A.has been toB.has been inC.has gone to为什么? he come back. back是什么词? He'll come back soon? When he will come back 纠错 My father has gone to Singapore ,and he will come back for three days. I hear that he has come back yesterday.这句子对吗,不对该怎么改呢 He has just come back form a southern city 为什么用a