The key answer of exercise 5
The key to exercise solutions in chapter 7 - Vocabulary for the textbook Performer B2 - Student's Book with authors Marina Spiazzi, Marina Tavella, Margaret Layton from Zanichelli
Question
Listen again and complete the sentences with the words below.
Answer
- Vaccines
- breakthrough; advance
- surgery
- prevention
- evidence
- observation
- Antibiotics; infections
- transplants
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