项选择题2分问题修改删除Thebosshasgiveneveryonespecialholiday,sowe_______gotoworktomorrow.答案A.A.can’tB.B.mustn’tC.C.needn’tD.D.shouldn’t在此处添加问题问题2单项选择题问题2分修改删除Hepaidforaseat,whenhe______haveenteredfree.答案A.A.couldB.B.wouldC.C.mustD.D.need在此处添加问题问题3单项选择题问题2分修改删除------ThewomanbiologiststayedinAfricastudyingwildanimalsfor13yearsbeforeshereturned.-------Oh,dear!She_______alotofdifficulties!答案A.A.maygothroughB.B.mightgothroughC.C.oughttohavegonethroughD.D.musthavegonethrough在此处添加问题问题4单项选择题问题2分修改删除----DoyouknowwhereDavidis?Icouldn’tfindhimanywhere.------Well.He______havegonefar---hiscoat’sstillhere.答案A.A.shouldn’tB.B.mustn’tC.C.can’tD.D.wouldn’t在此处添加问题问题5单项选择题问题2分修改删除------Catherine,Ihavecleanedtheroomforyou.-----Thanks.You______it.Icouldmanageitmyself.答案A.A.needn’tdoB.B.needn’thavedoneC.C.mustn’tdoD.D.shouldn’thavedone在此处添加问题问题6单项选择题问题2分修改删除Iwasonthehighwaywhenhiscarwentpastfollowedbyapolicecar.They_______atleast150kilometersanhour.答案A.A.canhavebeendoingB.B.musthavebeendoingC.C.couldhavedoneD.D.wouldhavedone在此处添加问题问题7单项选择题问题2分修改删除He______havecompletedhiswork;otherwise,hewouldn’tbeenjoyinghimselfbytheseaside.答案A.A.shouldB.B.mustn'tC.C.wouldn’tD.D.can’t在此处添加问题问题8单项选择题问题2分修改删除Ihavelostoneofmygloves.I______itsomewhere.答案A.A.mustdropB.B.musthavedroppedC.C.mustbedroppingD.D.musthavebeendropped在此处添加问题问题9单项选择题问题2分修改删除You_____betired------you’veonlybeenworkingforanhour.答案A.A.mustnotB.B.won’tC.C.can’tD.D.maynot在此处添加问题问题10单项选择题问题2分修改删除Mr.White_______at8:30forthemeeting,buthedidn’tshowup.答案A.A.shouldhavearrivedB.B.shouldarriveC.C.shouldhavehadarrivedD.D.shouldbearriving在此处添加问题问题11单项选择题问题2分修改删除-----Idon’tmindtellingyouwhatIknow.----You_______.I’mnotaskingyouforit.答案A.A.mustn’tB.B.maynotC.C.can’tD.D.needn’t在此处添加问题问题12单项选择题问题2分修改删除Childrenunder1