Usage Examples Present Perfect vs Past Simple

• I didn't do it on my own. -
• When did Alice move to Portland? -
• I had pancakes for breakfast. -
• My grandmother read this newspaper yesterday. -
• Did they go to the university with you? -
• The teacher hasn't seen you this week. -
• Has your mother done the shopping already? -
• It is the worst day I have ever had. -
• Where have you travelled lately? -
• Have you ever met a celebrity? -
• My grandfather did not work at a bank. -
• Rosie didn't bake this cake, I did. -
• You've spilt the water and now the floor is wet. -
• My sister was born in Italy. -
• Anna has met me today. -
• My mum has lost her keys and cannot get into the house now! -
• Has Anna passed this exam already? -
• Laura has never been abroad. -
• John liked my new book. -
• We went to Paris three months ago. -