11.John is said to be the brightest student in class 
12.She is said to won the competition.
13. they say that many people are...floods.
14.he is believed to be killed by terrorists.
15.a story is going to be told by my teacher.
16.the engine of the car has to been repaired.
17.By whom is this poem written?
18.i wish I hadn't broken the vase 
19.He had the homework done by Nam yesterday.