. 1. The letter (to write) by him was very long.
2. We are interested in the goods (to produce) by this factory. 3. She didn’t understand the word (to say) by him. 4. He didn’t see the things (to keep) in her box. 5. I don’t like the video (to buy) yesterday. 6. This is the house (to build) many years ago. 7. The question (to put) to the professor was important. 8. When (to offer) to work abroad, he refused.