He (Which should be El, but anyway) visto is not correct, because you are talking about someone else. Yo Tengo is correct, because you are staying that you have seen.
Frecuentemente el viaja a San Antonio.
Yo viajo
Tu viajas
El/ella viaja
Nosotros viajamos
Vosotros viajais
Ellos/ellas viajan.
To look at the gimnasio (gym)
The other answers are about talking to someone. In this case what is his idea for (finding) William.
Answer: to look at the gimnasio
Hope it helped
Answer:
C
Explanation:
I speak Spanish so I would know
