No, it is not a preposition. Thirty is a number, used as an adjective, noun, and pronoun.
"Wait" can be used as a verb or as a noun, but not as an adverb, preposition, or interjection. It is a verb when indicating the action of delaying or remaining in expectation, and a noun when referring to a period of waiting.
Stairs is a noun. "Sharon had to walk (verb) up thirty seven flights of stairs (noun)."
No, then is not a preposition. It is a conjuction.Than is a preposition.
flew is not a preposition. sorry but through is a preposition
No, then is not a preposition. It is a conjuction.Than is a preposition.
its a preposition
No, "closely" is not a preposition. It is an adverb that describes how an action is performed, in a near or intimate manner.
no it is not a preposition
At is a preposition. Anything that can be ___ the box is a preposition. For Example: At the box.
If is not a preposition. It is a conjunction.
No, a preposition is always part of a prepositional phrase. The preposition is the word that introduces the phrase and is followed by the object of the preposition.
The preposition, the object of the preposition, and everything in between. The object of the preposition answers the question "(preposition) what?" For example: He looked in the box worriedly. "in the box" is the prepositional phrase because "in" is the preposition, and "box" is the object of the preposition. "Box" answers the question, "(preposition) what?, or in this case, "In what?"