三大从句复习2.Scientistshaveadvancedmanytheoriesaboutwhyhumanbeingscrytears,noneof_____hasbeenproved.A.whomB.whichC.whatD.that3.(2017南京、淮安三模）Keepingaregularsleepscheduleisimportantforsettingababy'sbodyclock,______researchersnoteshouldbeinplacebyabout4monthsofage.A.whoseB.whichC.whenD.where4.2017连云港、宿迁、徐州三模）Wesellalotofproductsoffshoreandtheopportunitytoopenupmarketsinregions_______wedon'tcurrentlysellalottoisagreatone.A.whereB.thatC.whatD.when3.(2017连云港、宿迁、徐州三模）ItisestimatedthatChinahasover770million4Gusers,whichdoubles______itwasin2015.A.thatB.whichC.whatD.how3.---WhatdoyouthinkmakestheTVshowlettersAliveabighit?---_____thekindofhumanitybehindeverylettertouchestheheartstringsoftheaudience.A.ThatB.WhatC.WhetherD.Because123.(2017南通、泰州一模）---Whatdoyouthinkitisthathascontributedtohishugesuccess?---______hekeepsfocusedonwhatheisdoing.A.BecauseB.HowC.WhetherD.That1.(2017南京、淮安三模）_____cyclingisafantasticwaytoburnafewcaloriesandsavesomemoney,therestillexistrisks.A.SinceB.WhileC.AsD.When2.(2017常州一模）---Doyouknowanythingabouttheintellectualpropertylaw?---Well,_______youproducepiratedgoods,______youareagainstit.A.when,soB.unless;otherwiseC.if;thenD.although;yet2.(2017南京、盐城一模）I‘vecometolearnthatthebesttimetodebatewithfamilymembersis______theyhavefoodintheirmouths.A.howB.thatC.whetherD.when3.(2017北京高考）Ifyoudon'tunderstandsomething,youmayreach,study,andtalktootherpeople______youfigureitout.A.becauseB.thoughC.untilD.since4.(2015江苏高考）Itissocoldthatyoucan'tgooutside______fullycoveredinthickclothes.A.ifB.unlessC.onceD.when3.(2017江苏如皋）Accordingtothereport,thegovernmentwillholdameeting______peoplecanvoicetheiropinionsontoday'sglobaleconomy.A.WhichB.whereC.whenD.whoseMariahaswrittentwonovels,bothof_____havebeenmadeintotelevisionseries.(山东高考）Mariahaswrittentwonovels,andbothof______havebeenmadeintotelevisionseries.Mariahaswrittentwonovels,bothof______madeintotelevisionseries.A.thatB.whichC.themD.that3.(2015陕西高考）Asthesmallestchildofhisfamily,Alexisalwayslongingf