Tom in the library every night over the last three months.
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Tom in the library every night over the last three months.
Tom ——————— in the library every night over the last three months.
A had been working B have been working 哪一个 为什么.
Tom ——————— in the library every night over the last three months.
A had been working B have been working 哪一个 为什么.
你给的选项都是错的.答案应该是
has been working
语法:
over the last three months.----------在你的语境里面,时态是现在完成(进行)时.
再问: 为什么不用had 不是说过去三个月。
再答: 因为over the last three months指的是“从三个月前到我们讲话时为止”,所以必须是“现在完成(进行)时”。
has been working
语法:
over the last three months.----------在你的语境里面,时态是现在完成(进行)时.
再问: 为什么不用had 不是说过去三个月。
再答: 因为over the last three months指的是“从三个月前到我们讲话时为止”,所以必须是“现在完成(进行)时”。
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