It had been a very strange morning.这句话怎么分析?从语法句法角度

It's been very informative It had been a very strange day.就这句话特别是 It had been 分析吧谢 It's been so long since I had been a teacher.请问这句好如何翻译? It had been a very strange morning.这句话怎么分析?从语法句法角度 Where's your homework?—_.A.It's been handed in C.I had handed it in. “It's so much darker when a light goes out than it would have been if it had never shone.” It's been a while It's been a long it's been a long The book_____the test of time.Over 200 years after it was written,it's been very popularA.will stand B.has stood C.had stood D.is standing 请帮我选择并解释：It's nine O'clock and it's time you___to bed.A.went B.were C.have been D.had been 8.It’s expected that the new highway _____ completed by next June.A.would be B.will have been C.has been D.had been ____ three years since i left school.Now I miss my classmate very much.A.It was B.It have beenA.Itwas B.It have been C.It is D.It had been 为什么不选b呢? Sb had been said love as fly kite,It's very mind easier with regret of lover,but sb forget tell me it had been a long time ,since sb was a girl.这个过去完成式,had been The police______Dan's bicycle.A.had been finding B.had been found C.had foundD.have been finding --- Hi,Terry,can I use your computer for a while this afternoon?--- Sorry..A.It' s repaired B.It has been repairedC.It's being repaired D.It had been repaired 英语翻译George was a quiet,serious young man.He had been studying very hard one year,and when he passed his exams,his friend Jim went to give him his congratulations .“You've never been to a dance,George,” he said.“It's boring if you are al