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新概念习题Lesson143~144一、选择填空1.Whatlanguage__________inAmerica?A.speakB.spokeC.spokenD.isspoken2.Thewindows__________yet.A.haven’topenedB.haven’tbeenopenedC.didn’topenD.didn’topened3.Thiskindofflowermust__________everyday.A.waterB.bewateredC.wateredD.watering4.Thiskindofbike__________inTianjin.A.ismadeB.makesC.ismakingD.made5.They__________tocleantheclassroomyesterday.A.areaskedB.wereaskedC.askedD.ask6.__________mademeverysad.A.ThatIsawB.WhichIsawC.WhatIsawD.Isaw7.Theoldtown__________beautifulwoods.A.issurroundingbyB.issurroundedbyC.issurroundedinD.surroundedby8.Thegroundwas__________piecesofpaper.A.coveredinB.coveringbyC.coveredwithD.coveringwith9.Litterbaskets__________underthetrees.A.haveplacedB.havebeenplacedC.isplacedD.areplacing.10.Thereare__________peoplehere.A.hundredofB.hundredsC.hundredsofD.hundredfor二、将下列句子改为被动语态.1.Wehaveemptiedthebaskets.____________________________________________________2.Theywatertheseflowerseveryday.____________________________________________________3.Somebodycleanedtheroomyesterday.____________________________________________________4.Heinvitedmetotheparty.____________________________________________________