Either use a full stop "." or an exclamation mark "!", depending on the forcefulness of the command.
Well, in this sentence, a question mark.
full stop
This *might* be referring to end punctuation, i.e. the punctuation mark at the end of a sentence or question. It might be a period, a question mark, an exclamation mark.
A punctuation mark is put at the end of a sentence to denote the conclusion of an idea. The punctuation mark used here is mainly a period. However, if you use a question mark at the end of a sentence, then it is used to denote that the material before the question mark was a question. An exclamation mark is used to add emphasis to the before-stated material.
A comma should follow the closing if there is a colon following the salutation.
Well, in this sentence, a question mark.
A semicolon or a comma can follow the word "however" in a sentence.
The different punctuation at the end of a sentence are mostly period ("."), Question mark ("?"), Exclamation mark ("!").
Punctuation at the end of a sentence indicates a complete thought.
If you are posing a question, use a question mark (?) for punctuation.
A comma
full stop
The missing punctuation mark is a period.
An interrogative sentence ends with a question mark.
right brace
A question mark is a punctuation mark used to end an interrogatory sentence.
declarative