Read the following sentence in Spanish. La niña tiene un oso de peluche en su recámara. Substitute "un oso de peluche" with a direct object pronoun and explain why you used the pronoun you chose.
La niña lo tiene en su recámara.
I used the direct object pronoun "lo" because "un oso de peluche" is a masculine singular noun, and the pronoun "lo" is the appropriate pronoun to replace it.