Memory Past simple Vs present perfectVersión en línea Students have to match the pictures with the correct sentences taking onto account if they are in past simple or present perfect. por Paola Alcina I didn't sleep yesterday. They have sailed the sea for two days. They haven't travelled to Paris. She has swum for one hour. They haven't flown a plane in their lives. Clare wore a beautiful dress two days ago. She studied for the math exam yesterday. She has bought many presents for their parents. He has fallen down on the wet floor. She ate a lot of cake two hours ago.