只能用that的情况:1.当先行词为all;much;little;few;none;something;anything;nothing等不定代词时2.当先行词被all;every;no;some;any;little;much等词修饰时3.当先行词被序数词;最高级;theonly;thevery;thelast;theright;oneof等词修饰时4.当主句是特殊疑问句时Eg:whoisthepersonthatisstandingatthegate?Whichofusthatknowssomethingaboutphysicsdoesnotknowthis?5.当先行词在主句中充当表语或关系词在从句中充当表语时Eg:Maryisnolongerthegirlthatsheusedtobe.1.Theplace_______interestedmemostwastheChildren'sPalace.A.WhichB.whereC.whatD.inwhich2.Doyouknowtheman_______?A.whomIspokeB.towhospokeC.IspoketoD.thatIspoke3.Thisisthehotel_______lastmonth.A.whichtheystayedB.atthattheystayedC.wheretheystayedatD.wheretheystayed4.Doyouknowtheyear______theChineseCommunistPartywasfounded?A.whichB.thatC.whenD.onwhich5.Thatistheday______I'llneverforget.A.whichB.onwhichC.inwhichD.when6.Thefactory______we'llvisitnextweekisnotfarfromhere.A.whereB.towhichC.whichD.inwhich7.Greatchangeshavetakenplacesincetheninthefactory_______weareworking.A.whereB.thatC.whichD.there8.Thisisoneofthebestfilms_______.A.thathavebeenshownthisyearB.thathaveshownC.thathasbeenshownthisyearD.thatyoutalked9.Canyoulendmethebook______theotherday?A.aboutwhichyoutalkedB.whichyoutalkedC.aboutthatyoutalkedD.thatyoutalked10.Thepen______heiswritingismine.A.withwhichB.inwhichC.onwhichD.bywhich11.Theyarrivedatafarmhouse,infrontof______satasmallboy.A.whomB.whoC.whichD.that12.Theengineer______myfatherworksisabout50yearsold.A.towhomB.onwhomC.withwhichD.withwhom13.Itthereanyoneinyourclass______familyisinthecountry?A.whoB.who'sC.whichD.whose14.I'minterestedin______youhavesaid.A.allthatB.allwhatC.thatD.which15.Iwanttousethesamedictionary______wasusedyesterday.A.whichB.whoC.whatD.as16.Heisn'tsuchaman______heusedtobe.A.whoB.whomC.thatD.as17.HeisgoodatEnglish,______weallknow.A.thatB.asC.whomD.what18.LiMing,______totheconcertenjoyeditverymuch.A.IwentwithB.withwhomIwentC.withwhoIwentD.Iwentwithhim19.Idon'tlike______asyouread.A.thenovelsB.thesuchnovelsC.suchnovelsD.samenovels20.Hetalkedalotaboutthingsandpersons________theyrememberedintheschool.A.whichB.thatC.whomD.what21.Theletterisfrommysister,______isworkinginBeijing.A.whichB.thatC.whomD.who22.Inourfactorythereare2,000workers,twothirdsof____arewomen.A.themB.whichC.whomD.who23.You'retheonlyperson______I'veevermet______coulddoit.A.who;/B./;whomC.whom;/D./;who24.Ilostabook,______Ican'tremembernow.A.whosetitleB.itstitleC.thetitleofitD.thetitleofthat25.LastsummerwevisitedtheWestLake,______HangZhouisfamousintheworld.A.forwhichB.forthatC.inwhichD.what26.Ihaveboughtsuchawatch_______wasadvertisedonTV.A.thatB.whichC.asD.it27.Icanneverforgettheday_______weworkedtogetherandtheday______wespenttogether.A.when;whichB.which;whenC.what;thatD.onwhich;when28.Theway______helooksatproblemsiswrong.A.whichB.whoseC.whatD./29.Thisisthereason______hedidn'tcometothemeeting.A.inwhichB.withwhichC.thatD.forwhich30.Thismachine,______formanyyears,isstillworkingperfectly.A.afterwhichIhavelookedB.whichIhavelookedafterC.thatIhavelookedafterD.Ihavelookedafter31.Thereason______hedidn'tcomewas______hewasill.A.why;thatB.that;whyC.forthat;thatD.forwhich;what32.Heisworkinghard,______willmakehimpassthefinalexam.A.thatB.whichC.forwhichD.who33.Thatisnottheway______Idoit.A./B.whichC.forwhichD.withwhich34.Ihavetwogrammars,______areofgreatuse.A.allofwhichB.eitherofwhichC.bothofthatD.bothofwhich35.Iwanttousethesametools_______usedinyourfactoryafewdaysago.A.aswasB.whichwasC.aswereD.which36.Myneighborsusedtogivemeahandintimeoftrouble,_______wasverykindofthem.A.whoB.whichC.thatD.it37.Thisisthemagazine_______Icopiedtheparagraph.A.thatB.whichC.fromthatD.fromwhich38.Heisnotsuchaman_______wouldleavehisworkhalfdone.A.thatB.whichC.whoD.as39.Youcandependonwhateverpromise_______hemakes.A./B.whyC.whenD.whose40.Smoking,_______isabadhabit,is,however,popular.A.thatB.whichC.itD.though41.---Didyouasktheguard_______happened?---Yes,hetoldmeall_______heknew.A.what;thatB.what;whatC.which;whichD.that;that42.Ishallneverforgetthoseyears_______Ilivedonthefarmwiththefarmers,_______hasagreateffectonmylife.A.when;whoB.that;whichC.which;thatD.when;which43.Thenumberofthepeoplewho_______cars_______increasing.A.owns;areB.owns;isC.own;isD.own;are44.Duringthedays________,heworkedasaservantattheBrowns.A.followedB.followingC.tofollowD.thatfollowed45.Isoxygentheonlygas_______helpsfireburn?A.thatB./C.whichD.it46.Thecleverboymadeaholeinthewall,_______hecouldsee_____wasgoingoninsidehouse.A.which;whatB.throughwhich;whatC.throughthat;whatD.what;that47.Is_______someGermanfriendsvisitedlastweek?A.thisschoolB.thistheschoolC.thisschooloneD.thisschoolwhere48.Johngotbeateninthegame,_______hadbeenexpected.A.asB.thatC.whatD.who49.Ihaveboughttwoballpens,_______writeswell.A.noneofthemB.neitherofthemC.neitherofwhichD.noneofwhich50.Allthatcanbeeaten_______eatenup.A.arebeingB.hasbeenC.hadbeenD.havebeen参考答案及解析1.A.which用作关系代词,在定语从句中作主语。2.C.和谁讲话”要说speaktosb.本题全句应为DoyouknowthemanwhomIspoketo.。whom是关系代词,作介词to的宾语,可以省略。3.D.where是关系副词,表示地点,在定语从句中作地点状语。4.C.when是关系副词,表示时间,在定语从句中作时间状语。5.A.which是关系代词,在从句中作forget的宾语。其他几个答案都不能作宾语。6.C.解析同第5题。7.A.解析见第