5、hed11.The troubleis ______ wecan reach the conferencecenterwithin twentyminutesintherushhour.A.whatB.howC.whenD.why12.Mikehasn’tappearedfortwoweeks,______hisfriendsarewonderingwhathashappenedtohim.A.soB.butC.orD.for13.Electriccarsproduceabout80percentlesspollutionthancars______gas-powere
6、dmotors.A.fromB.byC.forD.with14.______ that he had fallenbehind, Peter startedto quickenhis pace.A.RealizedB.TorealizeC.HavingrealizedD.Havingbeenrealized15.Canyouimaginewhatthemodernworld______likewithoutsmartphones?A.wereB.wouldbeC.hadbeenD.wouldhavebeen第二节完形填空(共20小题;每小题1.5分,共30分)阅读下面短