Usage Examples Present Perfect vs Past Simple

• Rosie didn't bake this cake, I did. -
• I stayed home last night. -
• I've known Sarah for five years. -
• They haven't lived here for years. -
• We have just got back from our holidays. -
• Did you have a pet when you were a child? -
• I had pancakes for breakfast. -
• Mary has not started her essay yet. -
• Where have you travelled lately? -
• Did they go to the university with you? -
• Has your mother done the shopping already? -
• It is the worst day I have ever had. -
• Emily didn't see you yesterday. -
• I didn't do it on my own. -
• Why did Anna go to Manchester two weeks ago? -
• You've spilt the water and now the floor is wet. -
• Did we take this bus last time? -
• We went to Paris three months ago. -
• I didn't go to the university last week. -
• My grandmother read this newspaper yesterday. -