Match the sentence to what it illustrates. 1 .
an introductory interjection
My mother--what a pianist--taught me all I know about music.
2 .
a parenthetical expression
Yes, I feel that water color is an exciting hobby for an artist.
3 .
an appositive
As if he had never seen one before, Jerry stared at the beautiful pyramid.
4 .
a sudden break in thought
Cambodia, an interesting country, is located in southeast Asia.
5 .
an introductory adverbial clause
The Eustachian tube is, of course, essential for correct hearing.