Which sentence contains a singular subject? The students on the social committee are planning the school dance.

All of the fruit looks ripe.

Some of the friends will be taking calculus next year.

Many in the auditorium had questions for the speaker.

Transition words are words like first, furthermore, besides, for instance, secondly, as a result using words like those should you write paragraphs showing time. you can start with first and then end with lastly or as a result

Afirefighter is a rescuer extensively trained in firefighting, primarily to extinguish hazardous fires that threaten life, property and the environment as well as to rescue people and animals from dangerous situations.  just cut some parts to make them shorter and add some of your facts or what describes them most. or what they are supposed to do.