Usage Examples Present Perfect vs Past Simple

• I didn't go to the university last week. -
• I haven't bought a new computer yet. -
• Did we take this bus last time? -
• Rosie didn't bake this cake, I did. -
• My mum has lost her keys and cannot get into the house now! -
• Did you have a pet when you were a child? -
• Who is the smartest person you have ever met? -
• My brother didn't play hockey at school. -
• Have you ever been to Ukraine? -
• I've known Sarah for five years. -
• What interesting foods have you eaten in your life? -
• Has your mother done the shopping already? -
• You've spilt the water and now the floor is wet. -
• John liked my new book. -
• I stayed home last night. -
• Mary has not started her essay yet. -
• What did your husband do last month? -
• Have you ever met a celebrity? -
• Has Anna passed this exam already? -
• Where did you work five years ago? -