The key answer of exercise 12
The key to exercise solutions in chapter Unit 7 - Science in action for the textbook Performer B2 - Workbook with authors Marina Spiazzi, Marina Tavella, Margaret Layton from Zanichelli
Question
Complete the sentences with the correct form of the verbs below. Be careful: there are two extra verbs.
Answer
- performed / conducted
- conducting / performing
- haven't come
- Are you collecting
- demonstrate