A. He writes a letter.
B. A letter is written by him.
C. He has written a letter.
D. He will write a letter.
Answer: A letter is written by him.
A. He writes a letter.
B. A letter is written by him.
C. He has written a letter.
D. He will write a letter.
Answer: A letter is written by him.
Additional Information: In the passive voice, the subject receives the action, as in 'A letter is written by him.'
Subjects: Verbs, Parts of Speech