选择填空(答案要告诉我为什么这样做)
①I_____alettertomygoodfriendat8:00yestdayevening.
A.wroteB.amwritingC.waswrieingD.write
②Theword"hour"has_____"h"_____"u"and_____"r"init
A.an,an,aB.a,an,anC.an,a,anD.a,an,a
③We_____footballwhenitbegantorain.Wehadtostopandgohome..
A.playedB.wereplayingC.willplayD.aregoingtoplay
④Look!_____fineweatheritistoday!
A.WhataB.WhatC.HowaD.How
⑤---Hello,isthatMr.Greenspeaking?
-----Yes,_____?
A.who'sthatB.whoisheC.whoareyouD.whoisit
⑥Ihad_____myhomeworkbeforeIwenttobed.
A.tofinishedB.finishingC.tofinishesD.tofinish