Упражнения, выполненные студентами,

Упражнения, выполненные студентами, были легкими.

Результаты (английский) 1:

Exercises performed by the students, were light.

Результаты (английский) 2:

Exercises made by students, were mild.

Результаты (английский) 3:

exercises by students, were light.