1.this flowers are watered by my father every morning
2.fiona was invited to john's birthday party by john last night
3.the dinner is being prepared in the kitchen by her mother
4.our teeth should be cleaned twice a day
5.the english grammar has been explained by our teachers
7.his parents will be visited by tom next month
6.the accident was caused in this city by some drunk drivers













dài quá không làm nữa :)))