In many of these sentences, I find myself unable to tell if they're referring to a past, a present, or a future event, so I can't correct those. I have underlined those forms that have this problem, where I need more information regarding which tense they are referring to. I have also bolded and underlined the sentence numbers where there are other problems that condition my best correction.
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MrGuedes9. The number of oversea students in Vietnamwashas fluctuated in recent years, with a having significantly increased and hi