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Thank you very much Chelsey! I was quite confused about the logic of the sentence, but now I start to understand what the GMAT focuses on. :D Interesting question! First of all, let me just give you a warning about paying too much attention to 'ambiguous pronouns'. If it's obvious to you what the an...

Hi, can anyone tell me what is the difference between 'in the last century' & 'in last century'?
Do they have different meanings?
What tense should be used with them, present past or past?
Thank you!