Usage Examples Present Perfect vs Past Simple

• Rosie didn't bake this cake, I did. -
• It hasn't rained a lot this year. -
• They haven't lived here for years. -
• I had pancakes for breakfast. -
• My mum has lost her keys and cannot get into the house now! -
• My brother has been to Mexico three times. -
• What interesting foods have you eaten in your life? -
• Emily didn't see you yesterday. -
• I didn't do it on my own. -
• Who is the smartest person you have ever met? -
• Did your mother go to a doctor on Tuesday? -
• My sister was born in Italy. -
• Mary has not started her essay yet. -
• Did you have a pet when you were a child? -
• Where did you work five years ago? -
• I have already finished my project. -
• Have you ever been to Ukraine? -
• Did they go to the university with you? -
• My dad broke his leg last month. -
• Jack has seen this film before. -