WhatwereyoudoingwhentheUFOarrived?Wherewashe?Hewasinthebathroom.Whatwashedoing?Hewastakingashower.Hewasinthebarbershop.Wherewashe?Hewascuttinghair.Whatwashedoing?Shewasinthebedroom.Wherewasshe?Shewassleeping.Whatwasshedoing?Shewasinthekitchen.Wherewasshe?Whatwasshedoing?Shewascooking.Hewasreading.Whatwashedoing?Hewasintheliving-room.Wherewashe?UFOaanalienIwasinthekitchenwhentheUFOlanded.IwascookingdinnerwhentheUFOlanded.PairworkA:WherewereyouwhentheUFOarrived?B:IwasinthekitchenwhentheUFOarrivedA:WhatwereyoudoingwhentheUFOarrived?B:IwascookingdinnerwhentheUFOarrived.HewasplayingbasketballwhentheUFOarrived.WhatwashedoingwhentheUFOarrived?Whilehewasplayingbasketball,theUFOarrived.WhatwasshedoingwhentheUFOarrived?ShewasskatingwhentheUFOarrived.WhileshewasskatingtheUFOarrived.WhatweretheydoingwhentheUFOarrived?TheywereplayingvolleyballwhentheUFOarrived.WhiletheywereplayingvolleyballtheUFOarrived.比较“when”and“while”2.WhentheUFOlanded,theboywaswalkingdownthestreet.Whiletheboywaswalkingdownthestreet,theUFOlanded1.Whenthealiengotout,thegirlwasshopping.Whilethegirlwasshopping,thealiengotout.==talkwithapolicemanrideabikegiveareporttakephotosA:WhatwasthegirldoingwhentheUFOtookoff?B:Whilethegirlwas…./WhentheUFOtookoff,themanwas…Pairwork
