英语时态语法问题,

问题描述:

英语时态语法问题,
Tom ___(work) in the library every night over the last 3 months.用什么时态,一般ing过去时对吗 全错,我去。应该是has been working

答:in/over/during the last/ past N years,作状语,多用现在完成时或现在完成进行时,如:
Great changes have taken place in the past 30 years.
Tom has been working in the library every night over the last 3 months.
译:在过去的三个月里,汤姆每天晚上都在图书馆上班.