Please let me know the passive form of:Ask him to write a letter.

Change the following sentence into passive form. He writes a letter.

Change the following sentence into passive form. He writes a letter.A letter is written by him.A letter was written by him.A letter will be written by him.A letter should be written by him.He wrote a letter.

change the following sentence into passive form.Will the postman deliver the letters?

change the following sentence into passive form.Will the postman deliver the letters?Will the letter be delivered by the postman?Can the letters be delivered by the postman?Can the letter be delivered by the postman?Will the letters be delivered by the postman?Will the letters be deliver by the postman?

Change the following sentences into passive voice:One should not give unsolicited advice.