Répondre :
1. We have lunch together with the whole family. — So have we.
2. Josh has to wake up early to go to school. — So have I.
3. Josh's sister is allergic to nuts, she can't eat them. — So is mine & neither can she.
4. Our dog is very friendly. — So is ours.
5. We don't go to the restaurant every week. — Neither do we.