I'm not the best at Spanish, but for number 15, it is ella tiene hambre.
Answer:
In order to correctly complete this exercise, you have to fill-in each one of the blanks with the possessive adjective suitable for each case. <em>Note that the possessive adjectives will vary depending on the gender and number of the nouns being described, so pay particular attention to the nouns in the sentences.</em>
Explanation:
Muchos de mis amigos y parientes viven en otros países. Mi amiga Catalina y <em>sus</em> padres viven en España; <em>su</em> primo Augusto y <em>sus</em> abuelos viven en Guatemala; mis primas Francesca y Paulina viven con <em>su</em> madre en Canadá; y <em>mis</em> amigos Diego y Carlos viven en Chile.
Los niños comieron los dulces de Ella
Answer:
I stop, make sure the car is locked and then go to the front door.
Or I stop, open the door, and say hello to the front secretary.
Explanation:
I'm not exactly sure what you're asking but by the patters of the first sentences, I think the ones I put are right.