2. Дополните предложения. Употребите Present Perfect.

They have been friends since the age of three. This is the best idea Jack has had yet. I’m happy to see you again. I haven’t seen you for ages. – How long have you known him? – I have known him since childhood. Jerry isn’t here. He has left. It has been hot for the last three days. I have been to Smolensk before. The light bulb has blown. We have never met him before. Who has laid the table?