I（ have been/was ） studing for 12 year in the middle school已知题中的第一人称I（ have been/was ） studing for 12 year in the middle school已知题中的第一人称已经中学毕业谓语动词是用一般过去时还是过去完成

I'm forgetting.I was forgot.I have been forgotten, I have been studying English (since i was eibht years old) (对括号内容提问） I have been interested in f（ ）customs since I waI have been interested in f（ ）customs since I was little I’d have noticed something （） wrong if I had been there.(a) had been (b) was (c) has been (d) is I have been studying English since I was five (对since I was five提问) Chairman Mao' s works ____ published.A.has been B.have been C.was D.is I would have written before,but I （ ） ill.A.were B.had been C.would be D.was i was to have made a speech if（）a nobody called me awayb i had not been called away Alice,where did you go last night?I was asked to go to Tom's birthday party为什么不是have been asked? if it hadn't been for the fact that he was my brother's friend,i wouldnt have helped him(去if) You look so tired.What's up?I ( ) my computer all the aftermoon.But is still doesn't work.填have been repairing还是was repairing?求解释 I have been selling I have been trying I have ever been I too have been I have been to. I have been I have been in.