Me gusta + infinitive verb.
For example:
Me gusta bailar los Domingos por la noche.
Me gusta reir, cuando voy al circo.
Me gusta comer, cuando son las 14:00.
Me gusta correr por las mañanas.
Me gusta resolver problemas de matemáticas.
So for the usted form, you use the 3rd person singular of the present subjunctive instead of the 2nd person singular present indivatice so, 'hable'
22,to talk
23,not sure
25,not sure
Answer:In the year 1790, some workers 1. _______________ (discover) the calendar when 2. ____________ (be) making repairs in Mexico City. By order of General Porfirio Díaz, Mexicans 3. ________________ (move) the find to the National Museum of Anthropology in 1885. The Aztec calendar 4. _______________ (be) one of the most important objects of Aztec culture. Not only 5. ________________ (show) the days but 6. _________________ (calculate) how 7. __________________ (move) the Sun, the Moon, and the planet Venus. The Aztecs 8. ________________ (build) this calendar. 9. _________________ (Be) a very large circle-shaped stone and 10. _________________ (weigh) 20 tons. At its center, 11. _________________ (have) the face of Tonatiuh, the sun god, who is surrounded by other symbols 12. _________________ (represent) the universe. The Aztecs 13. ______________ (have) the belief that to maintain the order of the system of the universe 14. ________________ (must) do certain ceremonies. For example, the ancient inhabitants of Mexico City 15 ._______________ (put) the calendar in a horizontal position as if it were a mirror of the sky.
Explanation: