ответить на вопросы have your parents got two children? has your friend got a dog? have your grandparents got many grandchildren?

Yes, my parents got two children.
Yes, my friend has got a dog.
Yes, my grandparents have got many grandchildren.

1. have your parents got two children? у твоих родителей двое детей?

yes, they have. да (если двое)

no, they haven't. нет (если не двое: больше/меньше)

2. has your friend got a dog? у твоего друга есть собака?

yes, he has. да (если есть)

no, he hasn't. нет (если нет)

3. have your grandparents got many grandchildren? у твоих бабушки и дедушки много внуков?

yes, they have. да (если много)

no, they haven't. нет (если немного)