Chuyển từ chủ động sang câu bị động.
1 They are building a new school in West Street. 
2 They have just arrested him on suspicion of murder.
3 They will publish her new book next month.
4 They will have completed the new motorway by Christmas.
5 They’ve just cleaned the hotel rooms.
6 Someone stole her bike last night.
7 They’re going to repair the machine tomorrow.
8 They were servicing her car when I called her.
9 They had finished the project by Friday.
10 They may invite him to the wedding.