I am walling back and forth in this animal's world without finding any

I am walling back and forth in this animal's world without finding any I am come back. 英语改错题I like to walling back in black,i am I am come back now. i am back to china I am Going Back 歌词 I am an elephant I am back home 的语法分析 i am come back 翻译成中文? I am back soon 英文什么意思 I am back 翻译成中文是什么意思, I am come back,是不是病句 i am waiting for Harry_____(call) back I am back home 中”back和home的词性 l come back还是i am come back I English am an boy I am an old dog