THIS ACTIVITY IS DIVIDED IN FOUR STEPS:
1. Watch the video and write down all the signs and instructions that appear in it
2. Using modal verbs like "have to/ must/ mustn't", say how you use the London underground
3. Write a commentary about how to use the London underground. Do it as a sequence of events, for example: "When you get into the underground, you... Then you.... Next...."
4. VOICE-OVER COMMENTARY: As the video runs, read your commentary