What the question supposed to be?
Answer:
b un cinturon
Explanation:
un cinturon
a belt so he can put his pants on without them falling.
True, The sentence makes sense if your translating it to English Hope this helps
Verb: cantar
Yo canto - Cantaba
Tu cantas - cantabas
Èl/Ella/Usted canta - Cantaba
Nosotros cantamos - cantabamos
Ellos/Ellas/Ustedes cantan - cantaban