6.saying
heard + Ving : chứng kiến 1 phần sự việc
7.watched
8.being laughed
enjoy + Ving : thích làm gì ( câu bị động )
9.being interrupted
appreciate +Ving : cảm kích hđ nào đó (câu BĐ)
10.have been planted
11.was built
12.is being repaired
13,were woken
14.can be prevented
15.were invented
16.were destroyed
17.was discovered
18.had been finished
19.mended
20.be opened
21.to rebuild
22.making
23.was obeyed
24.thinks
