简介:四、巧借上下文1.Allthepreparationsforthetask____,andwearereadytostart.A.completedB.completeC.hadbeencompletedD.havebeencompleted支招:通过文中wearereadytostart“我们就要出发了”可推知“一切准备工作已经就绪”,表示完成,且依据时态一致原则,空白处须用现在完成时,故答案为D。2.Shesetoutsoonafterdark____homeanhourlater.(NMET蒺94)A.arrivingB.toarriveC.havingarrivedD.andarrived支招:setout“出发”和arrivehome“回家”应为两个先后发生的“连贯”动作,此处应由and连接两个并列谓语,所以答案选D。巧识下列句中上下文,然后准确选择时态:①Helen____herkeysintheoffice,soshehadtowaituntilherhus-band____home...