=> 1. A (The family in Britain is changing.....Britain.) 2. D (In particular there has been a rise in the number of singe-person households, which....) 3. B (In the past, people married before they had children, but now 40% of children in Britain are ....parents.) 4. B trì hoãn 5. A cung cấp nhiều thông tin, thông tin hữu ích
