---Hurry ! It，s high time that we_____to school.
--- Oh, if only the alarm clock_____earlier.A.should go rangB.shall go ; had rungC.shall go ;rangD.went ;had rang
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D解析本题考查虚拟语气。It’s time that sb. did/should + v原形；if only要是……该多好啊，引导与过去事实相反的虚拟语气，故用过去完成时，选D。