"I want to get on the bus" usually means that the bus is known and going to the destination. "This means you know the specific bus you want to use.
"I want to get on the bus." That means you decided to choose a bus by considering various means of transportation (boat, bicycle, hiking, etc.). This means that you have to find a specific bus
Schools, transportation facilities, (organizations) have many nouns, so there is no limit as it can not be counted
This is a great article on this topic. Http: //www.quickanddirtytips.com/education/grammar/when-to-use-articles-before-nouns
"I do" is very spoken and strictly not correct. I will be a better choice
We are not actually talking about another bus, we are talking about how to go from one place to another. I can say that I am going to the 5th floor with an elevator. If you want to refer to another bus, shuttle, or elevator you can use / an, depending on whether the listener knows the listener is talking. If so, we will use it normally
There is no easy way to decide when to use articles. Many usage are customary and you have to learn one by one at a time. Please increase the number of native speakers whose native English speakers are native speakers. The use of articles and the use of prepositions are two of the most difficult aspects of English for learners.
Pay fare by bus or cash. If you want to get on the bus, you have to pay the fare. Most people who use the bus purchase the pass and use it to increase efficiency and convenience. You can usually buy a bus ticket at the city's public transport website or office. If you are not interested in using the bus, you can also pay cash each time you get on the bus. Because most city bus drivers do not have the right to make changes on your behalf, be sure to make accurate changes. Some public transportation facilities offer discounts for the elderly and disabled people. You can apply for this discount at your city's public transport website or office, and you will receive a special bus pass so that you can use the bus to enjoy cheaper fares maybe.
When I was a child, I used a 10 hour Greyhound bus for a meeting I would like to participate (almost free). I can not say that taking a bus is superior to an Acela train. It's not. But the truth is not that you can do what you want to do with the price you can at the price you can. This is the same as a cheesy little free gym I'm about to go. Is it as beautiful as a boutique gym that I have been to before? It is not a long shot, but maintaining weight and health is important to me. Jim (and jumping to a free Youtube video) will also help to achieve this. Small-scale focus is on the minimum necessary to improve results and quality of life. It allows you to need to be different from what I need.