Как правильно писать? The children's names (is, are) The boys' toys (is, are) Your father's (is, are) Your aunt's (is,

Как правильно писать?

The children\'s names (is, are) — The children\'s names are Tom and Mary. (children — множественное число)

The boys\' toys (is, are) — The boys\' toys are(множественное число)

 Your father\'s (is, are) — Your father\'s a doctor. (единственное число)

Your aunt\'s (is, are) — Your aunt\'s a teacher.( единственное число)

The girls\' (is, are) — The girls\' books are here.(множественное число)