Correct these sentences. You are no different from the others. The business I have started is gaining momentum; previously we had five people working for us, now there's fifty people. I determined that calcium reacts with carbon to form calcium carbonate based on my lab results. I like it when the school provides us with interesting, optional courses. I know one of my teachers whose vocabulary is kind of archaic. Sometimes I would appreciate if the police officers are lenient to suspects. Nowadays, disrespectfulness is permissive among teenagers.Sorry, I didn't intend to be rude. I just want to practice English by trying to make sentences as natural as possible.Do these sound natural?