Usage Examples Present Perfect vs Past Simple

• The teacher hasn't seen you this week. -
• Emily didn't see you yesterday. -
• You've spilt the water and now the floor is wet. -
• I had pancakes for breakfast. -
• Mary has not started her essay yet. -
• I haven't bought a new computer yet. -
• John liked my new book. -
• It hasn't rained a lot this year. -
• What interesting foods have you eaten in your life? -
• Have you ever met a celebrity? -
• I have already finished my project. -
• Has your mother done the shopping already? -
• I stayed home last night. -
• Has James just left? -
• Rosie didn't bake this cake, I did. -
• My brother didn't play hockey at school. -
• Jack has seen this film before. -
• It is the worst day I have ever had. -
• I didn't do it on my own. -
• What did your husband do last month? -