Subject, "they", verb, "entered", direct object, "room", (and "the" is an adjective of room). So subject verb direct object.
She entered the room
"He entered the room" is the way the sentence should read
We entered the room laughing merrily. The couples were still dancing merrily when the ship struck the iceberg.
entered
She slipped out of the room unobtrusively.
She entered the room
You have entered the room.
"He entered the room" is the way the sentence should read
A veiled woman entered the room.
The light was dim when I entered the room.
The king entered the room with expected pomp and ceremony.
I entered the room stealthily, hoping to remain unnoticed.
When Max entered the room, Freddie abruptly turned and walked out.
No. It would be "A new computer was placed in her room," "A new computer was brought into her room," or some derivative.
The enuthusiastic speaker entered the room and gave his speech with ardor.
I entered the unlit room cautiously. The boy cautiously tested the water.
The correct pronoun would be "I": Lorna and I entered the room.To make this clearer, you would say "I entered the room." rather than "Me entered the room".The pronoun "I" is a subject pronoun. The subject of the sentence is "Lorna and I", a compound subject.The pronoun "me" is an object pronoun, a word used as the object of a verb or a preposition.Example: The door opened for Lorna and me. (the compound object of the preposition 'for')