Usage Examples Present Perfect vs Past Simple

• I haven't bought a new computer yet. -
• They haven't lived here for years. -
• Mary has not started her essay yet. -
• What interesting foods have you eaten in your life? -
• I've known Sarah for five years. -
• Have you ever met a celebrity? -
• Has your mother done the shopping already? -
• What is the most beautiful place you have ever been to? -
• Jack has seen this film before. -
• Has Anna passed this exam already? -
• I stayed home last night. -
• Did your mother go to a doctor on Tuesday? -
• Have you ever been to Ukraine? -
• My grandmother read this newspaper yesterday. -
• Did we take this bus last time? -
• Has James just left? -
• Did you have a pet when you were a child? -
• What did your husband do last month? -
• We have just got back from our holidays. -
• It hasn't rained a lot this year. -