Ответьте на вопрос только  Why is Robin surprised?
Read the dialogue and answer the question: Why is Robin surprised?Robin and Misha: Goodbye, Alice. We'll always remember you.
Alice: I'll write to you, boys. Here is my address. 
Robin and Misha: Where are you going now?
Alice: I'm going to London to Waterloo Station. My train to Paris is at one o'clock. 
Robin and Misha: A train?! But England is an island!
Alice: Don't you know about the Channel Tunnel? 
Robin and Misha: What is that?