Question

which sentence is in passive voice?

jon gave his paper to his teacher.
jon researched his paper for hours.
jon wrote the paper.
the paper was written by jon.

Explanation:

Define passive voice structure

Using the Passive Voice knowledge point
In a passive voice sentence, the subject receives the action of the verb. The standard structure is:

$$ \text{Subject (Receiver)} + \text{Form of "to be"} + \text{Past Participle} + (\text{by} + \text{Agent}) $$

Analyze the first three options

Using the Active Voice knowledge point

• "Jon gave his paper to his teacher." (Jon is the subject performing the action "gave".)
• "Jon researched his paper for hours." (Jon is the subject performing the action "researched".)
• "Jon wrote the paper." (Jon is the subject performing the action "wrote".)

Analyze the fourth option

Using the Passive Voice knowledge point

• "The paper was written by Jon."
• "The paper" is the subject receiving the action.
• "was written" is the auxiliary verb "was" plus the past participle "written".
• "by Jon" identifies the agent performing the action.
• This matches the passive voice structure.

Answer:

• (A) Jon gave his paper to his teacher.
• (B) Jon researched his paper for hours.
• (C) Jon wrote the paper.
• (D) The paper was written by Jon. (Correct answer)