Answer:
1. Siehst du ..................? unseren Vater
Explanation:
You need to use the masculine pronoun in the Accusative case; that's why only unseren works in the first sentence.
Answer:
2. Wie heißt ..................? Ihr Sohn
Explanation:
You need to use the masculine pronoun in the Nominative case; that's why only Ihr works in the second sentence.
