Question

1. mi es el hijo de mi hijo.
2. mi es la hermana de mi esposo.
3. mi es el hermano de mi padre.
4. mi es otra (another) hija de mi madre.

Explanation:

In Spanish, "nieto" means grandson, and the son of one's son is a grandson. "padastro" means step - father which doesn't fit the description of father's brother. "yerno" means son - in - law which is also not relevant here. The daughter of one's mother (other than oneself) is a sister in family relations.

Answer:

1. nieto
2. hermana (not shown in the dropdown but should be filled as it is the sister of husband in Spanish is "hermana del esposo")
3. tío (the brother of father is "tío" in Spanish, not in the dropdown)
4. hermana