I think it means three eight...
1-Tú estudias
2-Nosotros amamos
3-Ustedes limpian
4-Usted escucha
5-Yo compro
6-Ellos estudian
7-Tú ayudas
8-Él bebe
9-Nosotros aprendemos
10-Ellas escriben
11-Usted lee
12-Nosotros vendemos
13-Tú crees
14-Yo cómo
15-Ella abre
16-Tú corres
17-Yo creo
18-Él corre
19-Ustedes aprenden
20-Tú escribes
I am from Latinoamerica, this should be correct. Have a good day :)
Most of these questions were already in present tense but here they are in English. 1. We drink many soft drinks.
2. You listen to the professor.
3.She speaks English with her family.
4. We write letters.
5.They have not invoiced luggage
But here are just a few. I hope I helped you better with this.