Если я правильно поняла:
1. 25 words must be learned for the nest lesson.
2. Smoking is not allowed in this place.
3. A lot of books were published by this scientist.
4. Your American car will be repaired by John tomorrow.
5. The documents are being signed by boss now.
6. Three men were arested for robbery two days ago.
7. 10 million dollars were saved before they decided to buy a new flat.
8. New film was watched by my neighbours at 8 o'clock yesterday.