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1、when和while区别练习when、while引导时间状语从句时的区别练习题用when或者while填空1._Margowastalkingonthephone, hersisterwalkedin。2。_wevisitedtheschool, thechildrenwereplayinggames。3。_Sarahwasatthebarbers，Iwasgoingtoclass.4._IsawCarlos,hewaswearingagreenshirt.5。_Allenwascleaninghisroom，thephonerang.6。_Jakewaswaitingatthedoor,an
2、oldwomancalledtohim。7._itbegantorain，theywereplayingchess。8.Shesawataxicoming_thewomanwaswaitingunderthestreetlight。9。TheboywaswalkingdownthestreetaUFOlanded.10._thealienwasvisitingthemuseum，theboycalledtheTVstation。用所给动词适当形式填空1。WhileJake_(look）forcustomers,he_（see）awoman。2。They_（play）footballonthep
3、laygroundwhenit_(begin)torain。3.Astrangebox_(arrive）whilewe_(talk).4。John_（sleep)whensomeone_（steal)hiscar.5.Father_still_(sleep)whenI_（get)upyesterdaymorning。6。Grandma_(cook）breakfastwhileI_（wash)myfacethismorning.7.Mother_（sweep)thefloorwhenI_（leave)home.8.I_(read）ahistorybookwhensomeone_(knock）at
4、thedoor。9。MaryandAlicearebusy_(do)theirhomework.10。Thestudents_(play）basketballontheplaygroundfrom3to4yesterdayafernoon.完成下面句子,一空一词1.飞机在伦敦起飞时正在下雨.It_ _whentheplane_ _inLondon.2.你记得汶川大地震时你在做什么吗？Doyou_whatyou_whenWenchuanEarthquake_。3。当铃声想起的时候，我们正在操场上玩得很开心。We_ _ _ontheplaygroundwhenthebell_。4.当妈妈下班回家时，你在做什么？_ _ _ _ _Mum_ _ _fromwork?5.当我在做作业时，有人敲门。_ _ _ _ _ _，someone_ _thedoor。