4、inceD.before5.The job proved to be much more difficult than I______. A. expect B.expected C. would expect D.had expected 6.Walterofferedusaliftwhenhewasleavingtheoffice,butourwork______,wedidn’taccepttheoffer.A.notbeingfinishedB.havingnotbeenfinishedC.hadnotbeenfinishedD.nothavingfinished7.Howev