The key answer of exercise 4
The key to exercise solutions in chapter Unit 6 - BBC for the textbook Focus 3 (2nd edition) - Student's Book with authors Sue Kay, Vaughan Jones and Daniel Brawshaw from Pearson Education
Question
Discuss which alternative you think is most likely to increase alertness and which to improve performance.
Answer
- Increase alertness: chewing gum.
- Improve performance: sage.
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