时态专题单选题1.---Whyareyousolate?I’vebeenhereforalmostanhourandahalf.---I’mterriblysorry.JustasI________,Mr.Smithaskedmetosendane-mailforhim.A.leaveB.leftC.amleavingD.wasleaving2.Grace___ascarymoviewhensomeoneknockedatthedoor.A.iswatchingB.willwatchC.waswatching3.—Iwasshoppingwithmymomat8o’clocklastnight.Whataboutyou?—I________anewmovienamedfastandFurious8.A.amwatchingB.watchedC.willwatchD.waswatching4.-Ididn’tseeyouthewholeafternoon.-Oh,I_________mybrotherwithhisEnglish.A.helpedB.washelpingC.ishelping5.—Whywasitsonoisyonthefourthfloorjustnow?—Oh,Iforgottotellyou.Manychildren_______Ann’sbirthdaythere.A.celebratedB.arecelebratingC.werecel...