作业帮We arrived here three days ago.So we ____(be) here for three days.填什么?
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We arrived here three days ago.So we ____(be) here for three days.填什么?
We arrived here three days ago.So we ____(be) here for three days.填什么?
We arrived here three days ago.So we ____(be) here for three days.填什么?
have been 现在完成时
have been
填have been 。现在完成时，有时间指示语for three days
填have been 。现在完成时，有时间指示语for three days