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Three years has passed since the students came to this school.保持愿意The students have ( )( )this school for three years.

题目详情
Three years has passed since the students came to this school.保持愿意
The students have ( )( )this school for three years.
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答案和解析
been in
非延续性动词come不能和现在完成时for+时间段连用
改为been in