поставьте глаголы-сказуемые в главных предложениях в past indefinite (simple) и произведите соответствующие изменения в придаточных предложениях в соответствии с правилом согласования времен.
1. we know that nick has had some serious injuries. 2. we believe that some athletes of our academy will win the first prize at the olympic games. 3. the students tell us that they participated in the winter olympic games.
1. We knew that Nick had had some serious injuries. 2. We believed that some athletes of our Academy would win the first prize at the Olympic Games. 3. The students told us that they had participated in the Winter Olympic Games.