88：He had known a great deal about business.about business 在句中成份是什么?88：He had known a great deal about business.about business 在句中成份是什么?

I______him ever since he was a child.A.have known B.had known 88：He had known a great deal about business.about business 在句中成份是什么?88：He had known a great deal about business.about business 在句中成份是什么? He spoke as if he _______everything.a.knew b.had known 请指教该选哪一个? I ___li lei since he was a little boy A had konwn B have known 英语翻译If my father had known of it he would have died a second time. not until倒装Not until he failed the exam__that working hard is important.A> had he known B>did he know C>he knew D>he had known选哪个,为什么 working hard is ...现在时 I can’t stand him.He always talks as though he ___ everything.A.knew B.knows C.has known D.had known He lost his left leg.If I ( )more about going first aid,Icould have helped.A.knew B.have known C.had known D.would know说明原因 can't stand him.He always talks as if he—— everything,A,knew .B knows,...can't stand him.He always talks as if he—— everything,A,knew .Bknows,C,has known .D,had known If he ___ to the teacher attentively,he ___ the answer to the problem now.A.had listened,would have known B.listened,would know C.listened,would have known D.had listened,would know 16.She had thought of opening the door to ) he was,someone she had known a long time.(A) Whichever (B) Whatever (C) However (D) Whoever He told as if he knew everything.还是He told as if he had known everything. the　student　asked　her　professor　if　he　would　have　gone　on　the　space　ship　＿＿＿earlier．A．if　he　knowsB．if　he　knewC.　he　had　knownD．had　he　known By the time he was fourteen,he___what he wanted to be when he ___up.A.knew,grows B.knew,grew C.had known,grew D.has known,grows选什么,为什么. he acted as if he everything in the world .A)knew B )knows C )has known D )won't know 这句话不是虚拟语气吗?为什么不应该用had known Stave said that if he had known how it worked,he would have been told If only I________what you wanted!A.knew B.know C.had known D.have known He should have known the police wouldn't allow it but he didn't.He should have known the police wouldn't allow it_______.A.and he did B.but he didn't C.but he couldn't D.but he had新概念英语第二册中65课的题,为什么选择B项呢?如何