I have opened the computer为什么不用I had opened the computer

I have opened the computer为什么不用I had opened the computer i had opened the box 和 i have opened the box I had hardly opened the door when he rushed in the door opened为什么不用被动语态? Help!I had hardly opened the door when I he hit me. we have worked there since the factory opened.为什么不是had when I opened the window,I hearsome birds_________in the tre hardly had i opened the door when he hit me倒装 I had no sooner opened the door than telephone began to ring He has the same computer as I.这句话中为什么用I而不用mine. 英语高手请进,A :I have had a problem with the computer, i have had the computer ____many years A since B in C for D