The function of interjection is to express emotions or feelings. Usually it is a word or phrase.
The sentence ‘I have signed up for the following classes:
linguistics, geometry, sculpture, and archery.’ Is correct. To use a colon, the
first letter of the first word must not be capitalized. It ca also be used when
presenting a series of items.
If you were to work for only one day a week for a year how much would you earn?