How do you write 21 through 31 in Spanish shut

Fill the blank with a la, a los, a las, or al. los alumnos .

"in english, write six to eight sentences comparing cultural aspects of greetings in spanish-speaking countries with greetings in your own culture. use what you learned in the lessons to tell about three differences and three similarities. discuss non-verbal greetings and how respect is shown. you may also include verbal greetings, but do not simply translate phrases from one language to another."

El padre regaló un coche a su hijo, pablo.