Mother had cooked the dinner before Alex come back from school
Granny had bought products for lunch before Alex come back from school
Father had cleaned car before Alex come back from school
Каралина и кто-то там had fed chicks before Alex come back from school
Fred had cycled by bike before Alex come back from school
Uncle Roger had loaded cargo in the car before Alex come back from school
Кто-то(?) had watered the flowers before Alex come back from school