Final answer:
This answer provides positive and interrogative forms for given sentences in Spanish.
Step-by-step explanation:
1. Positive: I was very popular at school.
Interrogative: Was I very popular at school?
2. Positive: She danced cueca last September.
Interrogative: Did she dance cueca last September?
3. Positive: My sister bought lots of food in the supermarket.
Interrogative: Did my sister buy lots of food in the supermarket?
4. Positive: They were good students.
Interrogative: Were they good students?
5. Positive: Fabian traveled to Perú.
Interrogative: Did Fabian travel to Perú?
Learn more about Spanish sentence structure