Помогите пожалуйста, вроде все очень просто. но я не понимаю( буду очень сильно благодарен . На фото это все задание.

1 his watch was broken by him 2 The students were explained the rule by teacher the rule was explained by teacher 3 I often am asked to help them by him 4 written exercises usually are done in class by them 5 a new discover will be made soon by her 6 a report will be made by Steve at the conference 7 tennis is played all year round by them 8 Their children are usually sent to camp for summer 9  several jobs are offered me by manager 10 you will be promised much by them but don't imagine they will give you everything