Answer:
Viajar en tren es caro. Vaijar en carro es mas caro que viajar en bus. Vaijar en avion es caro.
Viajar en tren es muy comodo. Vaijar en carro es mas comodo que vaijar en avion.
Tomás y yo leemos unos libros. This is the right response becuase, the common action that people write; when it comes to books, is reading(leer). Also, you're talking in a plural form, becuase you are naming more than one person. That is becuase, it is leemos and not leer. To sum it up, the correct answer is leemos.
Its 1 and 3 (hrhfjddjdjdjjdjfjfjfjfjfjfjfjfjffj) (i typed the spam cuz of the 20 character long thing lol)