Usage Examples Present Perfect vs Past Simple

• I haven't bought a new computer yet. -
• I didn't do it on my own. -
• Has James just left? -
• Has Anna passed this exam already? -
• Mary has not started her essay yet. -
• I have already finished my project. -
• My dad broke his leg last month. -
• My brother didn't play hockey at school. -
• My sister was born in Italy. -
• Emily didn't see you yesterday. -
• My brother has been to Mexico three times. -
• What interesting foods have you eaten in your life? -
• Why did Anna go to Manchester two weeks ago? -
• We went to Paris three months ago. -
• Rosie didn't bake this cake, I did. -
• It is the worst day I have ever had. -
• They haven't lived here for years. -
• Did they go to the university with you? -
• I had pancakes for breakfast. -
• Where have you travelled lately? -