问题描述：
为什么用一般过去式?
has your husband returned from shanghai yet?
Yes,but he ______at home for only three days before he went to jepan on business.
用was为什么?
去日本是went 之前不是过去的过去吗？
has your husband returned from shanghai yet?
Yes,but he ______at home for only three days before he went to jepan on business.
用was为什么?
去日本是went 之前不是过去的过去吗？
问题解答：
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