现在进行时的标志词和典型例题

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-Whathe/she/it/David/Tina/Jessssister/theoldmandoingnow?Iyou/we/they/SteveandLaura/thesixmen/RicksandAmysbrothers.isdoingsth.amareisamare-He/She/It-I-You/We/They现在在进行行时系系动词be的用法的用法singswimwrite a lettersingingswimmingwritingDoing的变化的变化PacticedrawdancerundrawingdancingrunningPacticesleepsave peoplecut treessleepingcuttingsaving重读闭音节单词结尾只有一个辅音字母，且这个辅音字母发音。同时这个辅音字母前的元音字母发短元音(e,i,u)如：runrn,swimswim,cutkt1.Myparents（watch）TVnow.2.3.2.Look.Threeboys（run）.4. 3.Listen,someone（sing）intheclassroom. 现在进行时典型例题现在进行时典型例题用括号中动词的适当形式填空：are watchingare runningis singing