People said that he had done his test quite well. He was
People said that he had done his test quite well. => He was …
He was said to have done his test quite well.
Giải thích: cấu trúc bị động ý kiến: S + be + said + to V.
Dịch: Mọi người nói rằng anh ấy đã hoàn thành bài kiểm tra của mình khá tốt. = Anh ấy được cho là đã hoàn thành bài kiểm tra của mình khá tốt.