I've just come back from holiday but I feel tired and depressed.I don't feel as if I've just had a holiday.请问I don't feel as if I've just had a holiday.怎么理解呢?是否定前半句还是后半句呢?

I just come back from i just come back form I' ve been hopin' you come back to Hi,I haven't seen you for a long time.---I__ in Beijing.I've just come back.答案是shall be,was为什么不可以呢 I've just come off the tube.咦, 英语翻译这句话的时态到底是什么样呢?我查了两个翻译,百度翻译是：I've just come back from Beijing谷歌翻译是：I just came back from Beijing请问哪个正确呢? I've just come back from holiday but I feel tired and depressed.I don't feel as if I've just had a holiday.请问I don't feel as if I've just had a holiday.怎么理解呢?是否定前半句还是后半句呢? I have Just come back翻译成中文是什么哦? i just ___ (come ) back from hefei yesterday I am just come back from you I am just come back from you dream 我不懂 I've come so far,I can't go back where I used to be翻译 造句：I've just. u just come back home? I have just come back.是现在完成时吗?如果是,那come为什么不用过去分词? --Could you tell me ____?-- Sorry,I've no idea.I have just come back.选项为：A.what is the matter with Tom?B.what had happened to Tom C.where Tom was I've come _ (get) my bike back.Uncle Wang!He said. today,i've come back to hongkong to stand before you全文完整已下.THX I WILL COME BACK