This is a communicative activity you can use in a large class. If you want your students to know more about their friends' family, these ready-made worksheets will be a great help. It is called as 'Find someone who...' or 'Family Bingo'. I designed and created 6 Bingo grid-cards and all questions in the Bingo are different. It can be used in pair-work activity: Student A and Student B as well.