1) he's my dad. name is dan. 2) names are mary and jill. 3) is she? she's my grandmother. 4) they ballerinas. 5) are they? they are masks. 6) what's it's a pencil case. нужно добавить слова.

1) He's my dad. His name is Dan.
2) .Their. names are Mary and Jill.
3) Who is she? She's my grandmother.
4) They are. ballerinas.
5) What. are they? They are masks.
6) What is it (=What's this?)? It's a pencil case.