Usage Examples Present Perfect vs Past Simple

• I haven't bought a new computer yet. -
• They haven't lived here for years. -
• Where did you work five years ago? -
• We went to Paris three months ago. -
• I have already finished my project. -
• Where have you travelled lately? -
• Have you ever met a celebrity? -
• Mary has not started her essay yet. -
• I didn't go to the university last week. -
• Has James just left? -
• Did they go to the university with you? -
• You've spilt the water and now the floor is wet. -
• My brother has been to Mexico three times. -
• The teacher hasn't seen you this week. -
• What is the most beautiful place you have ever been to? -
• I stayed home last night. -
• My grandmother read this newspaper yesterday. -
• My grandfather did not work at a bank. -
• Emily didn't see you yesterday. -
• Who did you meet at the party yesterday? -