The key answer of exercise 3
The key to exercise solutions in chapter 9A - Gadgets for the textbook Solutions Pre-Intermediate - Workbook with authors Tim Falla and Paul A. Davies from Oxford University Press
Question
Answer the questions with the material words from exercises 1 and 2. Use each word only once.
Answer
- paper; wood; rubber; cardboard
- iron; copper; gold; aluminum; steel
- leather
- stone
- nylon; plastic
- glass; ceramic; concrete