四级英语语法问题1.Govermentreports,examinationcompositions,legaldocumentsandmostbusinesslettersarethemainsituations()formallanguageisused.A.inwhichB.onwhichC.inthatD.atwhat2.Ifthebuildingproject（)bytheendoft

　　四级英语语法问题

　　1.Govermentreports,examinationcompositions,legaldocumentsandmostbusinesslettersarethemainsituations()formallanguageisused.

　　A.inwhichB.onwhichC.inthatD.atwhat

　　2.Ifthebuildingproject（)bytheendofthismonthisdelayed,theconstructioncompanywillbefined.

　　A.tobecompledB.iscompledC.beingcompledD.compled

　　3.Jackwishesthathe()businessinstesdofhistorywhenhewasinuniversity.

　　A.hadstuidedB.studyC.studiedD.hadbeenstudying

　　从语法角度分析一下哈,第1局顺便翻译一下句意,看不懂诶