the day before 跟the day before yesterday相等吗?有这么个题：I ____(lose)the_英语解答

the day before 跟the day before yesterday相等吗?
有这么个题：I ____(lose)the pen which I _____(buy)the day before.
我觉得应该是 lost had bought
所给答案为：have lost bought

人气：226 ℃　时间：2019-11-20 15:44:09

解答

the day before 昨天,
the day before yesterday前天
在本句中并无影响,第一个空用现在完成时态,表示到目前为止,我已经丢了.
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