change into passive voice 1. she buys many flowers in the market 2. they went to the market 3. someone knocked your door 4. i had read a book 5. izam and siti w

1. Many flowers are bought by her in the market
2. In the market was gone by them
3. Your door was knocked by someone
4. A book was read by me
5. A letter will be sent by izam and siti to their parents

1. Many flowers are bought (by her) in the market.
2. Tidak bisa jadi pasif karena kalimatnya intransitif alias tidak ada object.
3. Your door was knocked (by someone).
4. A book had been read (by me).
5. A letter will be sent by Izam and Siti to their parents.