I lost my key ——(some)where near hear

I lost my key ——(some)where near hear I lost some(key) I have lost my key;I can't remember where I forgot it改错 I really don't know where I can find my lost key to the bike i must have lost my key~ i lost my key和i have lost my key有什么区别? What happened,Tom?---I lost my key __ the door. My dear!I hear Chinese New Year is getting near. -Where is my key?I can't find it. I can't find the key to my office,I( )have lost it on my way Yesterday I lost my key to the door,so I went into my house_ U___ ,i found my key lost in my office when i got home last