Usage Examples Present Perfect vs Past Simple

• My grandfather did not work at a bank. -
• When did Alice move to Portland? -
• My mum has lost her keys and cannot get into the house now! -
• I didn't do it on my own. -
• We went to Paris three months ago. -
• Mary has not started her essay yet. -
• Did we take this bus last time? -
• Have you ever met a celebrity? -
• Who is the smartest person you have ever met? -
• It hasn't rained a lot this year. -
• Has Rachel ever studied Hindi? -
• I didn't go to the university last week. -
• Have you ever been to Ukraine? -
• I have already finished my project. -
• I haven't bought a new computer yet. -
• Anna has met me today. -
• What interesting foods have you eaten in your life? -
• Where have you travelled lately? -
• You've spilt the water and now the floor is wet. -
• Has James just left? -