Usage Examples Present Perfect vs Past Simple

• My grandfather did not work at a bank. -
• John liked my new book. -
• I haven't bought a new computer yet. -
• My brother has been to Mexico three times. -
• Did you have a pet when you were a child? -
• When did Alice move to Portland? -
• My mum has lost her keys and cannot get into the house now! -
• What is the most beautiful place you have ever been to? -
• Did we take this bus last time? -
• Did your mother go to a doctor on Tuesday? -
• I stayed home last night. -
• Where did you work five years ago? -
• Has Anna passed this exam already? -
• We have just got back from our holidays. -
• It is the worst day I have ever had. -
• I went to Spain last year to study Spanish. -
• Have you ever been to Ukraine? -
• My grandmother read this newspaper yesterday. -
• Mary has not started her essay yet. -
• I've known Sarah for five years. -