El chico está usando su bicicleta.
Mi abuela está haciendo una sopa de pollo.
Hoy es el cumpleaños de Carlos.
Answer: He developed differential and integral calculus
Explanation:
La Casa de la Cultura o Casa de cultura o Palacio de cultura, es una institución abierta y accesible al público y que se encarga de generar de manera permanente, procesos de desarrollo cultural concertados entre la comunidad y las entidades estatales, destinado a la preservación, transmisión y fomento de muestras . english version: The House of Culture or House of Culture or Palace of Culture, is an open and accessible to the public institution and is responsible for generating permanent, cultural development processes agreed between the community and state entities, aimed at preservation, transmission and promotion of samples.
This is what you wrote but in english.
Today I am very happy; (1), see a smile on my face. I found a job! (2), it is not a bad job; (3), it really is very good. Remember that two months ago I wrote a letter to the multinational Chispitas and another to the Juanjo clothing factory? They will not believe it! I had a response from the two companies! (4), I received a phone call from the multinational company and, (5), they sent me a letter from the Juanjo factory. First I thought it was a joke. (6), the two messages seemed true. This week I had the two interviews. (7) in Chispitas they offered me a minimum salary and a contract for three months, in Juanjo they would give me a permanent job and a very good salary. (8), I took the job in the factory. My job is to analyze the financial situation of competing companies. (9), I have to talk to potential investors so that the company improves its financial situation. Yesterday I started with work and it is more difficult than I thought. (10), today I already feel a little stress. (11), I am happy because I can earn a living and return the money that my friends had given me. I prefer the pressure of work to the sadness of unemployment!
It is a nice story, but it isn't a question so I can't really answer it.