Yes. It gives you information on where to put something or where someone has gone.
Mary went into the school.
He threw the can into the fire.
The preposition in the word "supply" is "up."
No the word every is not a preposition.
No, the word "when" is not a preposition. It is an adverb or a conjunction used to indicate time or a condition.
No, it is not a preposition. The word explore is a verb.
No, it is not a preposition. The word thing is a noun.
Yes, the word among is a preposition.
No, the word "I" is not a preposition. "I" is a pronoun, specifically a subject pronoun that is used to refer to oneself.
No, the word "early" is an adverb, not a preposition. It is used to describe the timing of an action or event.
No, the word "away" is not a preposition. It is typically an adverb that describes movement or distance.
No, it is not a preposition. The word travelers is a plural noun.
No, it is not a preposition. The word surrounds is a verb form.
No, it is not a preposition. The word rivers is a plural noun.