Question

Change the sentence into Passive voice.
"I won the first prize"

Answer 1

Answer:

the answer is

the first prize was won by me

Answer 2

The first prize was won by me.

EXPLANATION:  

The active voice says that the subject does the action . The passive voice says the object is done by the subject.

In the active voice sentences is of the subject(I)  followed by verb(won) followed by the object(the prize). The passive voice can be changed as object followed by verb by the subject

Example: Sunil planted a mango tree. In passive voice it changes in to ‘The Mango tree was planted by Sunil’.