Usage Examples Present Perfect vs Past Simple

• I didn't go to the university last week. -
• I stayed home last night. -
• Did we take this bus last time? -
• I have already finished my project. -
• Have you ever met a celebrity? -
• My mum has lost her keys and cannot get into the house now! -
• Emily didn't see you yesterday. -
• It is the worst day I have ever had. -
• Has your mother done the shopping already? -
• I had pancakes for breakfast. -
• Who is the smartest person you have ever met? -
• Where have you travelled lately? -
• Has Anna passed this exam already? -
• Have you ever been to Ukraine? -
• Did they go to the university with you? -
• The teacher hasn't seen you this week. -
• Has Rachel ever studied Hindi? -
• I've known Sarah for five years. -
• Where did you work five years ago? -
• I didn't do it on my own. -