dohomework
to do （one's） homework
done homework
did homework
did homework(理由:did的是do的过去式 homework不可数所以不加s)
小盆友是 did homework
do one's homework (第三人称单数)does one's homework（现在进行时）doing one's homework(过去式）did one's homework可以选一个。。。
doone'shomework(第三人称单数)doesone'shomework（现在进行时）doingone'shomework(过去式）didone'shomework可以选一个。。。
做我的作业：He is doing his homework.(一般现在时） He was doing his homework.（一般过去时）做他的作业：do my homework.(一般现在时） did my homework.（一般过去时）
I do homework now
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水水香蓝草
