do.sing.study.have.run.watch单词的现在分词.第三人称单数.过去式

分类: 作业答案 • 2021-12-20 05:02:56

问题描述：

答

do done does did
Sing sang sings sang
Study 的三单是studies
Have heaven has had
Run ran runs
Watch 三单watches 过去式watched

答

doing singing studing having running watching
does sings studies has runs watches
did sung studied had ran watched