The key answer of exercise 3
The key to exercise solutions in chapter Unit 3 - BBC for the textbook Focus 4 (2nd edition) - Student's Book with authors Sue Kay, Vaughan Jones and Daniel Brawshaw from Pearson Education
Question
Watch the video and check your ideas in Exercise 2.
Answer
On weekdays the streets are extremely busy. There are ‘traffic-free Sundays’ when cars are banned from the city centre and only pollution-free means of transport are allowed.
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