An end mark is a punctuation mark used at the end of a sentence to show that the sentence is finished. There are three end marks: the period, the question mark, and the exclamation mark.
Comma
I knew these streets. however, they've changed.
The exclamation mark,! is a punctuation mark usually used after an interjection or exclamation to indicate strong feelings, or to show emphasis.
Semi Colon
The town was deserted;Everyone was on holidays
The question mark? is a punctuation mark that indicates an interrogative clause or phrase in many languages.
Colon
There are two choices at this time: Chase my dog or ask for help to the people
A comma is a punctuation mark that indicates a pause in a sentence or separates items in a list
A semicolon is used when an author could've chosen to end their sentence, but chose not to. ... Just as the mark is a sign for readers to pause before continuing a sentence,
The colon ( : ) is a mark of punctuation used after a statement (such as an independent clause) or that introduces a quotation, an explanation, an example, or a series.