I left mine at home.为什么这里要用left

I left mine at home.为什么这里要用left I left m at home No it is Helen. l left mine at home.为什么用mine而不用my呢 I left my homework at home I left my wallet at home 一句英语怎么理解?A good frieng of mine from when I was born showed up at my home right before I left for beijing. Can I ------ your dictionary for a minute? I left mine at home.用borrow 还是keep？为什么答案给的是borrow A good friend of mine from when I was born showed up at my home right before I left for Beijing.这是个什么从句? A good friend of mine from when I was born showed up at my home right before I left for Beijing.为什么不用where It isn't_____watch.I left mine at home.A.me B.my C.I D.myself求求各位英语大师了,一定要是最正确的答案啊! ）2. May I have a look at your watch? I _______ mine at home. A. forgot B. left C. remembered D. k）2. May I have a look at your watch? I _______ mine at home.A. forgot B. left C. remembered D. knew ）2.May I have a look at your watch?I _______ mine at home.A.forgot B.left C.remembered D.k）2.May I have a look at your watch?I _______ mine at home.A.forgot B.left C.remembered D.knew could you lend me your dictionary?Sorry,I left ______ at home.横线当中,标准答案为mine,请问填it可否?如果不可以,为什么? 1、Can I borrow your pen?I left ___at home.这题填it 还是mine? I am a( )I have left my key at home A good friend of mine from__I was born showed up at my home right before I left for Beijing 为什...A good friend of mine from__I was born showed up at my home right before I left for Beijing 为什么填when不填which 请问是I forget my homework at home.还是I left my homework at home.为什么? .—I must have______my watch at home.I can't______it anywhere.—Don't worry.You can use mine..—I must have______my watch at home.I can't______it anywhere.—Don't worry.You can use mine.A.m issed,see B.lost,look for C.forgotten,look for D.left,fi