=>
40. He was told not to be late again.
-> bị động QKĐ was/were V3/ed
41. Have all the sentences above been finished?
-> bị động HTHT have/has been V3/ed
42. The exam will be passed easily because they have studied hard.
-> bị động will be V3/ed
43. Vietnam is going to be visited by Mr.Obama next month.
-> bị động is/am/are going to be V3/ed
44. Children should be given a lot of love by parents.
-> should be V3/ed
45. My work has to be finished now.
-> have/has to be V3/ed
46. Your task must be done right now.
-> must be V3/ed
47. Their homework had been finished doing before they went to the movie theatre.
-> bị động QKHT had been V3/ed
48. He was being waited for at the school yard by Mary.
-> were/was being V3/ed
49. The floor was being cleaned by Anna and Jenny.
-> were/was being V3/ed
50. Before going shopping yesterday, the kitchen had been cleaned by David.
-> bị động QKHT had been V3/ed