Ex. 8. Find the sentences in which the word "producing" is to be translated as "производя".
1. The factory has been producing artificial fibres for ten years.
2. Producing new kinds of materials one should be particular about their quality.
3. The plant producing these goods was built last year.
4. This shop is producing new optical devices.
5. While producing a new king of crucibles engineers have to pay attention to the material they are to be made of.
6. The machines producing these goods must de renewed.