Iwas upset about failing the test yesterday.

I will fill the blank with the best word that fits to the sentence.

I was upset about me failing the test yesterday. This sentence portraits a man telling someone and explaining how he failed the test on the day before. Hope this helps.

Jargon is a term used to express ideas related to a particular trade.

Explanation:

Let's define each term:

Colloquialism- the use of ordinary words or phrases

Idiom- a group of words that do not have a literal meaning, but the meaning is understood (example: it's raining cat's and dogs)

Jargon- Words that are used in a particular profession and are difficult for others to understand (legal jargon, medical jargon)

Slang- very informal words

Based on these definitions, it is easy to see that jargon is the term used to express ideas related to a particular trade, like law or medicine.