Usage Examples Present Perfect vs Past Simple

• Did you have a pet when you were a child? -
• I haven't bought a new computer yet. -
• Where have you travelled lately? -
• I didn't do it on my own. -
• Have you ever been to Ukraine? -
• It is the worst day I have ever had. -
• I didn't go to the university last week. -
• Has James just left? -
• My brother has been to Mexico three times. -
• Where did you work five years ago? -
• Has your mother done the shopping already? -
• I had pancakes for breakfast. -
• John liked my new book. -
• My brother didn't play hockey at school. -
• My dad broke his leg last month. -
• You've spilt the water and now the floor is wet. -
• The teacher hasn't seen you this week. -
• Rosie didn't bake this cake, I did. -
• I stayed home last night. -
• When did Alice move to Portland? -