Question 1 with 1 blankana (jugar) al tenis con daniel.
question 2 with 1 blankdaniel (preferir) pasar la tarde charlando con sergio.
question 3 with 1 blankfelipe (salir) a bailar todas las noches.
question 4 with 1 blankyo (tener) clase de química a las 8 de la mañana.
question 5 with 1 blankjorge y bergoña (ir) a la playa
question 6 with 1 blanktú (querer) viajar a arizona.
question 7 with 1 blankdolores y tony (comer) muchas hamburguesas.
question 8 with 1 blanknosotros (ser) vegetarianos.
question 9 with 1 blankfermín (pensar) viajar a méxico con su amigo mario.
question 10 with 1 blankmario no (pasarlo) bien con él.

In this exercise, we need to conjugate correctly each verb in parentheses matching the simple present form. The simple present tense is used to talk about habitual actions or routines. This tense is also used to describe things that happen now or in the near future. The verbs in parentheses are given in infinitive, the ending of this type of verbs is ar, er, ir. Hence the correct sentences are:

Ana juega al tenis con Daniel.

Juega matches the third person singular

Daniel prefiere pasar la tarde charlando con Sergio.

Prefiere matches the third person singular

Felipe sale a bailar todas las noches.

Sale matches the third person singular

Yo tengo clase de química a las 8 de la mañana.

Tengo matches the first person singular

Jorge y Bergoña van a la playa

Van matches the third person plural

Tú quieres viajar a Arizona.

Quieres matches the second person singular

Dolores y Tony comen muchas hamburguesas.

Comen matches the third person plural

Nosotros somos vegetarianos.

Somos matches the first person plural

Fermín piensa viajar a México con su amigo Mario.

Piens matches the third person singular

Mario no lo pasa bien con él.

Pasa matches the third person singular. On the other hand, lo is the direct object pronoun for the third person singular.

which dialogs ? ?