Idroppedbyat600pmyes的精選

問題詳情：—Idroppedbyat6:00pmyesterdaybutfailedtoseeyouatyourhouse.—I     inagymatthattime.A.wasexercising   B.amexercisingC.haveexercised   D.hadexercised【回答】A知識點：動詞時態與語態題型：...