Name the words in the following sentences that express the relation of a
noun or pronoun to some other word:—
1. We withdrew from the room.
2. The boys ran through the hall.
3. This box is made of paper.
4. I went to school with him.
A word that is used to express the relation of a noun or pronoun to some
other word in the sentence is called a =preposition=.
The noun or pronoun which the preposition connects in sense with some
other word in the sentence, is called its =object=; as, The men are in
the _field_.