Ответ:

Притяжательное прилагательное ставится перед существительным: my phone. Притяжательное местоимение употребляется самостоятельно: mine.

  1. That accident was her fault and not mine.
  2. I can give you my red pen if you give me your blue one instead.
  3. Dishwashers were invented to make our life easier.
  4. Our car is a fast one, but it is not as comfortable as theirs, our neighbours.
  5. She pretends that the book is hers, but I know that it is mine.
  6. This is my red dress and it is much nicer than yours.
  7. That is not my umbrella. Mine is red and yours is black and white.
  8. My house is much bigger than yours but our garden is smaller.
  9. The neighbours have got three children but I don't know their names.
  10. Can I use your phone? Mine doesn't work.