Usage Examples Present Perfect vs Past Simple

• We have just got back from our holidays. -
• I didn't do it on my own. -
• Where did you work five years ago? -
• The teacher hasn't seen you this week. -
• Have you ever been to Ukraine? -
• We went to Paris three months ago. -
• Who did you meet at the party yesterday? -
• My mum has lost her keys and cannot get into the house now! -
• It hasn't rained a lot this year. -
• I didn't go to the university last week. -
• Emily didn't see you yesterday. -
• Jack has seen this film before. -
• Has James just left? -
• Have you ever met a celebrity? -
• Has Rachel ever studied Hindi? -
• My brother has been to Mexico three times. -
• I haven't bought a new computer yet. -
• Did your mother go to a doctor on Tuesday? -
• Did they go to the university with you? -
• Who is the smartest person you have ever met? -