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have been 和 has been的区别

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have been 和 has been的区别
have been 和 has been的区别
have been的主语是除了第三人称单数以外的人称,如
I have been to Beijing many years before.
They have been to Shanghai for a long time.
has been 的主语是第三人称单数,如
He has been to Harbin before.
Shs has been to Hainan these days.