Formal and informal English
Требуемые условия завершения
Although we haven’t yet gone intensely into this in class, there are definite differences in the language that could/should be noted. Business and research language tends to be more formal, while personal use takes on the informal, as a general rule. I’ve included two PDFs that deal with this idea (one in each direction).
NOTE from SARA: For your presentations, please use language you are comfortable with.