问题描述：
leave变完成时要改成be away 还是be away from?
Jenny has (left) Canada for three years.
括号里的left应该换成been away from 还是been away?
如果是been away的话语法正确吗?away后面可以直接加地点吗?
Jenny has (left) Canada for three years.
括号里的left应该换成been away from 还是been away?
如果是been away的话语法正确吗?away后面可以直接加地点吗?
问题解答：
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