赞 15monkey19 春芽
共回答了17个问题采纳率：94.1% 举报
首先,第一句话是语法错误的.只能是He has been outside,不能是He is been outside （has/have been是固定搭配.is been 不成立）.
其次,He has been outside 单独这一句话也是不成立的,因为has/have been后面一定要嫁一个时间点,比如 He has been outside for two hours.他已经在外面2个小时了.
He is outside的意思是他现在在外面.
其次,He has been outside 单独这一句话也是不成立的,因为has/have been后面一定要嫁一个时间点,比如 He has been outside for two hours.他已经在外面2个小时了.
He is outside的意思是他现在在外面.
1年前
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