Usage Examples Present Perfect vs Past Simple

• Emily didn't see you yesterday. -
• I stayed home last night. -
• When did Alice move to Portland? -
• It is the worst day I have ever had. -
• Laura has never been abroad. -
• I haven't bought a new computer yet. -
• My mum has lost her keys and cannot get into the house now! -
• We went to Paris three months ago. -
• My sister was born in Italy. -
• Who did you meet at the party yesterday? -
• John liked my new book. -
• Rosie didn't bake this cake, I did. -
• I've known Sarah for five years. -
• Did you have a pet when you were a child? -
• Has your mother done the shopping already? -
• I have already finished my project. -
• My grandfather did not work at a bank. -
• I didn't do it on my own. -
• The teacher hasn't seen you this week. -
• Has Rachel ever studied Hindi? -