I'd been had是什么意思为什么这样用?怎么分辨缩写形式呢?

I'd been had是什么意思为什么这样用?怎么分辨缩写形式呢? I knew I had been forgotten是什么意思 Nobody knew ___therea.how long time i had beenb.how long had i beenc.how long time had i been d.how long i had been说明一下其他3个为什么错, I believe my brother__never_____late for school.A,is;/ B,had;been C,has;been D,has;be选哪个,为什么? I didn't tell himA how long I have married B when I had been marriedC how long I had married D when I got married 为什么? when I got there,the meeting _____for ten minutes A.had begun B.has begun C.had been on D.had o为什么答案选C i wish you had been more interested in culture.为什么用had been 是什么时态? ,下题我知道选B ,但是不明白为什么,The watch ------ unticed for several days before i found it.A had laid B had lain C had been laying D had been lain After I had walked for six hours,___.A.I had been tired out B.I was tired out C.I'll be tired out D.I would have been tired out选什么答案,为什么? I would have tole him the answer had it been possible ,but i simply ___ no time A.had,hadB.had been C.had D.would have had ____in you position,I would help him A Was I B Were I C If I am D If I had been为什么 It____years since I saw you last timeA was B is C will be D had been 选哪个为什么 He asked me___during the summer holidays .A .where I had been B.where I had gone C .where had been D.where had I gone I think I have tried my best.All that can be done ___.A.has done B.has been done C.had done D.had been done为什么选B不选D I would have gone to visit him in the hospital had it been at all possible,but I was fullyoccupiedthe whole of last week.请问为什么用was呢?“had it been at all possible”是什么意思? 英语选择题The TV play ( )for ten minutes when I turned on the TV.A.had been on B.had started .The TV play ( )for ten minutes when I turned on the TV.A.had been to B.had started C.had begun D.has been on答案是A,为什么不是B呢 “Have you ever been to桂林?he asked me.==>He asked me( )为什么选C不选B?A had I ever been to桂林B have I ever been to 桂林C whether I had ever been to桂林D if I have ever been to 桂林 I would have told him the answer had it been posible ,but I ____so busy then.A had been B were C was D would be请问选什么为什么,