同义句he has come into the classroom：He _______ _______the classroom.

同义句he has come into the classroom：He _______ _______the classroom. He has come into the classroom.改为同义句He--- ---the classroom.原句是否有误,如果原句没错，用了has,come没变成came,是何用法?可以写成 He has been the classroom. 请问it seems that he has come back 同义句 he ____ _____ come back 的答案是什么,为什么? 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 done his homework同义句 He has a small face 同义句 He usually has lunch late.同义句 He has some friend here.同义句 He has green fingers.改同义句 he has two coffees.(改为同义句) he has brown hair的同义句 He has a good time .(同义句) he has a headache的同义句 he has a headache 改为同义句 he has fun every day同义句 He has no brothes改为同义句 He has no hat.(改同义句) He has not a hat 同义句