... Foundation Student’s Book Answer Key 10 6 Example answers 1 Pollution Problems: exhaust fumes, gases, harmful Vocabulary: carbon monoxide, destroy, leaded / unleaded petrol, etc. Traffic ... unfriendly fuels, eg leaded petrol 3 Improve and provide more public transport services Reduce public transport costs Road safety campaigns / improve roads More unleaded petrol Increase car / ... articles 1 c 2 b 3 a IELTS Foundation Student’s Book Answer Key 39 Listening p98 1 1 B 2 C 3 D 4 A 5 B Language focus 2 p99 Avoiding repetition 1 this: something which should not...