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英语
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i has been doing 还是i have been doing
人气:390 ℃ 时间:2019-10-19 08:42:37
解答
i have been doing
has 是第三人称单数用的,he or she
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have/has+been doing 与has/have+过去分词的区别
I have been doing sth.和I have done sth.有何区别?
Have/has been 后一定要加doing sth.吗?
英语翻译
has been doing have been done区别
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