After eating lunch at the cafeteria, Ben went to the gym to have a swim.
Due to the damage caused by the storm, the ferry will not be running today.
The company's training session, which was due to take place on Tuesday, has been postponed.
If you are going to college this autumn, don't forget to sign up for a discount card.
Explanation:
Commas are punctuation marks that separate and help organize words, clauses, and concepts in a sentence. They usually follow participial phrases that introduce a sentence.
An adverbial phrase such as "After eating lunch at the cafeteria" at the beginning of a sentence, should be followed by a comma. Nonrestrictive clauses such as "which was due to take place on Tuesday" are should be set off by commas. If a dependent clause is used to introduce a sentence, it should be followed by a comma.
