Usage Examples Present Perfect vs Past Simple

• I stayed home last night. -
• I haven't bought a new computer yet. -
• My mum has lost her keys and cannot get into the house now! -
• I didn't do it on my own. -
• Rosie didn't bake this cake, I did. -
• We went to Paris three months ago. -
• Where have you travelled lately? -
• Why did Anna go to Manchester two weeks ago? -
• It hasn't rained a lot this year. -
• The teacher hasn't seen you this week. -
• I went to Spain last year to study Spanish. -
• I had pancakes for breakfast. -
• Who is the smartest person you have ever met? -
• Did they go to the university with you? -
• Laura has never been abroad. -
• Anna has met me today. -
• We have just got back from our holidays. -
• It is the worst day I have ever had. -
• They haven't lived here for years. -
• Has your mother done the shopping already? -