had been laid和was being laid的区别……

had been laid和was being laid的区别…… The necklace ______ unnoticed for several days before I found it.A.had laid B.had lain C.had been laying D.had been laid The book I ___ on the book _____there ever since Alaid…has been lying B had beenB had laid …laid Claid…have been laid Dput…has laid was和had been是什么关系 过去完成时吗? she thought she?to nanjing at least three times.a:was b:had been c:would be ;d:had been 有没有be have been的说法?比如was had been..不可以的话 那么类似的怎么用? after the Arab states won independence great emphasis was laid on expanding education ,with girl as well as boys( )encouraged to go to school A to be encouraged B been encouraged C being encouraged D be encouraged it was the first time that a female （had been elected） president为什么不能was elected to be Madrid had laid down the law,but Toledo was carrying it out. 现在完成时和过去完成时的区别be+过去分词与was+过去分词的区别?意思一样吗?怎样区分?have been和had been又有什么区别?请说的详细点,不要抄的! After the Arab states won independence,great emphasis was laid on exnding aducation,After the Arab states won independence,great emphasis was laid on expanding aducation,with girls as well boys ______ to go to school.A.to be encouraged B.been encoura Susan would have come to help,had it been possible,but she _______ so busy then(A) had been (B) were (C) was (D) would be I would have told him the answer had it been possible,but I __________ so busy then.A.was B.were C.had been D.would be Susan would have come to help, had it been possible, but she _______ so busy then.(A) had been (B) were (C) was (D) would be His wife,to whom he______ for 20 years,was childless.A.has been married B.had been married同样是be married to,为何选择had? He was sixty-eight.In two years he _____seventy.A was going to be B would be C had been D will be is done,was done的被动语态是?is being done,was being done,has been done,had been done,will be done的被动语态是? I happened to be caught in a shower.It __ just a couple of minutes before I__ wet through A.had been;had been B.was;was C.was;had been D.had been;was 为什么 后面要用过去是而不是过去完成完时