tolong dong yang bisa biinggris ubah kalimat berikut menjadi kalimat passive

1. blue jeans is wear by tina
cm tau satu maaf ya kalo salah

1. Blue jeans are worn by Tina everyday.
2. A letter was written by Jack to his girlfriend yesterday. 
3. Jack and friends were invited to my house (by me) last night.
4. Rainbow cake was made by my mom.
5. Three sandwiches is being eaten by me right now.
6. Some flowers will be planted by us to make our class is more beautiful.
7. A new book is bought by Mr. Chandra at Gramedia.
8. The newspaper is read by you in the livingroom.
9. Some cake are brought (by me) for my friend.
10. the Ferarri is quickly driven by his brother.

rumus :
passive simple present : S + is/am/are + V3 + by O 
passive simple past :S + was/were+ V3 + by O.
passive present continuous : S + is/am/are + being + V3 + by O.

keterangan :
Objek di kalimat aktif, jadi subjek di kalimat pasif.
Subjek di kalimat aktif jadi objek di kalimat aktif.

cmiiw