Do the preparation exercise first. Then read the emails and do the other exercises.
Trains and travel
Subject: Where are you?
Where are you? I’m at the station waiting for you. Are you on the train? What time does it arrive? I’ll wait for you here at the station.
See you soon
Subject: Re: Where are you?
I’m on the train, but it’s late! It arrives at 17:30. Don’t wait for me at the station. I’ll get a bus to your house. What’s the bus number?
See you later
Do you use trains in your town or city?