When are colons used? Select three options.

A colon separates clauses in a series.

A colon signals that a list follows.

A colon appears in 12-hour time notations.

A colon is used after an introductory phrase.

A colon follows the greeting in a formal letter.

A colon signals that a list follows.

A colon appears in 12-hour time notations.

A colon follows the greeting in a formal letter.

The correct options are: 2. A colon signals that a list follows, 3. A colon appears in 12-hour time notations, 5. A colon follows the greeting in a formal letter.

Whenever you are announcing that you are going to list items, that first sentence that precedes the list finishes in a colon. For example, "for the trip you need: a sleeping bag, food and a flashlight".

When writing the time using the 12-hour time notations, the colon is used to separate the hour from the minutes like 4:45.

Finally, in formal letters, we use colons after greeting the addressee. For example, "Dear Mr. Bright:". When the letter is more informal, we use a comma.