кто поможет?
пожалуйсто
очень нужно
...for his grandmother
...for his father
...for his sister
...for his grandfather
...for his mum
пример: Bill is a son for his mother

Bill is a grandson for his grandmother Bill is a son for his father Bill is a brother for his sisterBill is a grandson for his grandfather Bill is a son for his mum 

1,4)grandson2,5) son3) brotherИспользуй конструкцию Bill is a ... и вставь нужное в зависимости от пункта.