Usage Examples Present Perfect vs Past Simple

• Has James just left? -
• The teacher hasn't seen you this week. -
• My grandfather did not work at a bank. -
• I've known Sarah for five years. -
• I haven't bought a new computer yet. -
• It is the worst day I have ever had. -
• Did your mother go to a doctor on Tuesday? -
• My mum has lost her keys and cannot get into the house now! -
• You've spilt the water and now the floor is wet. -
• I didn't do it on my own. -
• I didn't go to the university last week. -
• My brother didn't play hockey at school. -
• Has your mother done the shopping already? -
• I had pancakes for breakfast. -
• Emily didn't see you yesterday. -
• My sister was born in Italy. -
• John liked my new book. -
• My dad broke his leg last month. -
• We have just got back from our holidays. -
• It hasn't rained a lot this year. -