I think the answer is c but I could be wrong!!
Have you seen mr Welch, our new accounting teacher?
The Youngstown Greek festival, which includes food and dancing, is a popular local event.
Please listen class, while jim makes an announcement.
His mother, by the way, is a physics professor
Both C and D.
"will" in will be is a linking verb saying which tense it is in or indicating.
Sand is a noun.
A noun is a person, place, thing, or idea. Sand is a noun because it is a thing.
well it says here in the exerpt that they bursted out in to laughter showing they thought that was a joke.