1. the tickets will be bought (by him) tomorrow
2. the witnesses of the accident are being looked for
3. the book can be found (by her) in the library
4. his friend has just been introduced to us (by him)
5. the bill should be checked at once
6. our best students are given grants
7. the freshman wasn’t laughed at by pupils in their class
8. the film was being talked about
9. the guide wasn’t being listened to
10. my camera must not be taken
местоимения либо занесены в скобки, либо совсем отсутствуют, так как их часто опускают, когда они не несут смысловой нагрузки в предложении
