What is the function of an interjection? A. To tell a location or time
B. To join two ideas in a sentence
C. To describe a verb or a noun
D. To show emotion or feeling

B. To join two ideas in a sentence.

D

An interjection is a part of speech that demonstrates the emotion or feeling of the author. These words or phrases can stand alone, or be placed before or after a sentence. Many times, as within the examples of interjections below, you'll notice many interjections are followed by an exclamation point.