3 The dinner is being prepared in the kitchen by her mother.
-> Bị động tiếp diễn: S + is/am/are + being + Vpp.
4 Our teeth should be cleaned twice a day.
-> S + should + be + Vpp
5 The English grammar has been explained by our teachers.
-> Bị động hiện tại hoàn thành: S + have/has + been + Vpp
6 The accident was caused in this city by some drunk drivers.
-> Bị động quá khứ đơn: S + was/were + Vpp
7 His parents will be visited by Tom next month.
-> Bị động tương lai đơn: S + will + be + Vpp
8 The secretary wasn't phoned by the manager this morning.
-> Bị động quá khứ đơn: S + was/were + Vpp
9 Was this beautiful dress bought by Mary?
-> Bị động quá khứ đơn: S + was/were + Vpp
10 These old pictures won't be hung in the living room.
-> Bị động tương lai đơn: S + will + be + Vpp