1. Right answer:
La hija tiene siete años
tiene is the conjugation of the verb tener for the third person singular in the simple present. We use this tense to talk about habitual actions or routines. This tense is also used to describe things that happen now or in the near future. Also, la hija can be replaced by the subject pronoun for the third person singular (feminine form), which is ella. In English:
The daughter is seven years old
2. Right answer:
Nosotros tenemos una familia pequeña.
tenemos is the conjugation of the verb tener for the first person plural in the simple present. This person matches the subject pronoun nosotros, whose translation is we. So, our family is large. We can translate this sentence in English as the following statement:
We have a large family
3. Right answer:
Tú tienes una familia grande.
tienes is the conjugation of the verb tener for the second person singular in the simple present. This person matches the subject pronoun tú, whose translation is you. So, your family is large. We can translate this sentence in English as the following statement:
You have a large family