Thay đổi các câu hoạt động dưới đây thành thụ động.
People should save pandas from extinction. -->……………………………………………………………………………………. 52. People must obey all traffic laws. -->……………………………………………………………………………………. 53. Someone ought to repair this broken window. --> ……………………………………………………………………………………. 54. Someone should have supplied the hotel guests with clean towels. -->……………………………………………………………………………………. 55. Someone had better take this garbage to the dump soon. -->……………………………………………………………………………………. 56. People can pick tomatoes before they are completely ripe. --> ……………………………………………………………………………………. 57. Someone is supposed to divide the profits among the shareholders. --> ……………………………………………………………………………………. 58. Someone must have hurt Peter's feeling. --> ……………………………………………………………………………………. 59. Someone has to finish this work today. --> …………………………………………………………………………………… 60. Someone ought to have reported the accident to the police.