Choose the best way of expressing future actions. my train leaves / will leave / is going to leave / is leaving in 10 minutes. george is meeting / will meet / is going to meet / meets his colleagues next friday. listen! there’s someone at the door. i will open / am going to open / am opening / open the door for you. sandy buys / is going to buy / is buying / will buy a new jumper but she hasn’t chosen the colour yet.