Today is a luck day , I catch the train on time . At pm 7, the train will leave  . I leave our office at PM 6 o’clock to go the train station .  

Today I nearly late .Why is that?  Because the are too much traffic lights, and the lights always red when I get there . On the way to station , my boss give me a call  talk about some important things. In order to catch the train , I’m run into the train station , use the ticket machine get ticket ,  pass the security quickly . Finally,   i get on the train , the is only 5 minutes left .

it’s very luck day . If i miss the train , i need wait 2 hours .