has he come?come不是短暂性动词吗?它可以用完成时吗?

has he come?come不是短暂性动词吗?它可以用完成时吗? 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? To my s________,he has come back. Has he come back?对么?不用came? Her dream has come true.为什么系动词是has come不是come.本人英语不好. 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. He has tauhgt here since he come here 对since he come here 提问 If he has time,he can come tomorrow.找出错误 if he has time,he must come改错 He hasn't come yet.what do you consider ---to him?为什么选has happened而不是happening 不是consider doing 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 英语时态.he has come here several times.为啥不对? He has h_____ that Miss White will come back he has not come back 反意疑问句是什么 He has not come back__he left.中间填什么 l want to know how long_______A.has he been backB.has he come backC.he has been backD.he has come b为什么 Jim has made many friends since he ____to China,Acame Bcomes Chas come Dwill come Time Has Come 歌词