<em>Past tense indicates that the action was completed in the past. On the other hand, present perfect tense indicates that the action has been completed in the present.
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<em>Present perfect is for a period of time that continues from the past until now.
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<em>Using a time tag when using present perfect is wrong.</em>
Answer: An important event in my life that changed me is Coronavirus. It has taught me that family is important. My life goal is to live as happy as I can. It also taught me to be kinder to my siblings.