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1.75亿学生的选择
请把下面的单词改为第三人称单数形式,ing形式,过去式do
【宁儿】439
does,doing,didgoes,going,wentwatches,watching,watchedwashes,washing,washedreads,reading,readswims,swimming,swam；has,having,hadflies,flying,flewtakes,taking,tookeats,eating,ategets,getting,gotstudies,studying,studiedsings,singing,sangbuys,buying,boughtsees,seeing,saw关于fly的过去式,确认为flew,很认真的检验,
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does doing didgoes going wentwatches watching watchedreads reading readswims swimming swamhas having hadflys flying fliedtakes took takingeats eating ate gets getting got studies studying studiedsings singing sangbuys buying bought sees seeing saw
does doing didgoes going wentwatches watching watchedreads reading readswims swimming swamhas having hadflys flying fliedtakes took takingeats ate eatinggets got gettingstudies studing studiedsings singing sangbuys bought buyingsee saw seeing
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1.75亿学生的选择
单词怎样改成ing形式（什么情况下双写,或者省略不写啊）
【红领巾】玐谒
1.一般情况下直接加ing,比如playing,singing；2.末尾有e时,去e加ing,比如making,having；3.以一个元音字母+一个辅音字母结尾时,双写末尾辅音字母,再加ing,比如cutting,running.
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1.75亿学生的选择
6年级英语单词在句中的变化比如变化什么三单形式,ing形式……并说明在什么样的句子里会变化成什么样
sfCE84OO40
三单形式就是在第三人称单数形式中用.比如：He,she,it.ing形式就是在现在进行时用.比如：Now,at the moment,at present,right now.
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三单:加"s,es".
一般现在时:加ing
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