Usage Examples Present Perfect vs Past Simple

• My mum has lost her keys and cannot get into the house now! -
• John liked my new book. -
• I've known Sarah for five years. -
• My dad broke his leg last month. -
• It hasn't rained a lot this year. -
• I didn't go to the university last week. -
• We have just got back from our holidays. -
• My grandmother read this newspaper yesterday. -
• What interesting foods have you eaten in your life? -
• Did they go to the university with you? -
• We went to Paris three months ago. -
• You've spilt the water and now the floor is wet. -
• Did your mother go to a doctor on Tuesday? -
• Has Anna passed this exam already? -
• Rosie didn't bake this cake, I did. -
• Who is the smartest person you have ever met? -
• I had pancakes for breakfast. -
• Has your mother done the shopping already? -
• Mary has not started her essay yet. -
• Anna has met me today. -