1.we heard him shouting at his children
-He
2.People believe that he was killed by terrorists
-He
3.You don't need to wind this watch
-This watch
4.David is going to have the dentist fill his tooth
-David is going to have his tooth
5.people say that she is a talented actress
-She
6.they suggested making the tests easier(Use should)
-they suggested that
7.We never heard him say thank you' in his life
-He
8.Nobody has used this room for ages
-This room
9.My brother helped me do my homework
-I
20.He likes people to call him by his first name
-He likes
1. we heard him shouting at his children
- He was heard shouting at his children.
2.People believe that he was killed by terrorists
- He is believed to have been killed by terrorists.
3. You don't need to wind this watch
- This watch does not need to be winded.
4.David is going to have the dentist fill his tooth
- David is going to have his tooth filled by the dentist.
5.people say that she is a talented actress
- She is said to be a talented actress.
6.they suggested making the tests easier(Use should)
-they suggested that we should make the tests easier.
7.We never heard him say thank you' in his life
-He has never heard to say thank you in his life.
8.Nobody has used this room for ages
-This room has not been used for ages.
9.My brother helped me to do my homework
-I was helped do my homework by my brother.
20.He likes people to call him by his first name
-He likes being called by his first name.