Usage Examples Present Perfect vs Past Simple

• I haven't bought a new computer yet. -
• Who is the smartest person you have ever met? -
• Emily didn't see you yesterday. -
• I've known Sarah for five years. -
• The teacher hasn't seen you this week. -
• My sister was born in Italy. -
• John liked my new book. -
• Has Anna passed this exam already? -
• My mum has lost her keys and cannot get into the house now! -
• Anna has met me today. -
• Why did Anna go to Manchester two weeks ago? -
• Where have you travelled lately? -
• My grandfather did not work at a bank. -
• What interesting foods have you eaten in your life? -
• I stayed home last night. -
• It hasn't rained a lot this year. -
• Has James just left? -
• My brother didn't play hockey at school. -
• Mary has not started her essay yet. -
• My grandmother read this newspaper yesterday. -