Question

change the following into passive voice remove by+ agent where necessary. 1)he had written many letters. 2) they had built a house. 3) we had taken lunch. 4) you had joined a school. 5) they had not eaten anything. 6) someone had stolen my pen 7) anyone had not raised the voice. 8)no one had opposed me. 9)I had already drunk milk. 10) they had not insulted.​

Answer 1

Answer:

Many letters have been written by him .