I hereby certify that XXX,a student __1__ in XXX at XXX University,__2__ __3__our company from June 15,2011 to September 5,2011 and January 18,2012 to March 3,2012.这里的1应该填has been majoring 还是majored?2 应该天had worked 还是has worked 还是worked?3 应该填for 还是 at 还是in?我快疯了.这是要给老外看的,求各位大神帮帮忙看看我这句话有没有什么其他错误还是怎么写会更好一点啊!跪谢!
问题描述：
I hereby certify that XXX,a student __1__ in XXX at XXX University,__2__ __3__our company from June 15,2011 to September 5,2011 and January 18,2012 to March 3,2012.这里的1应该填has been majoring 还是majored?2 应该天had worked 还是has worked 还是worked?3 应该填for 还是 at 还是in?我快疯了.这是要给老外看的,求各位大神帮帮忙看看我这句话有没有什么其他错误还是怎么写会更好一点啊!跪谢!
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