Passive voice
7. the cat has broken many bowls and dishes in the kitchen
->many bowls and dishes have been broken in the kitchen by the cat
8. the teacher always advises us to study harder in the second term
->we are always advised to study harder in the second term
9. dangerous driving causes many accidents
->accidents are caused by dangerous driving
10. people can grow rubber trees in tropical countries
->Rubber trees can be grown in tropical countries
Passive voice
7. the cat has broken many bowls and dishes in the kitchen
Many bowls and dishes in the kitchen has been broken by the cat.
8. the teacher always advises us to study harder in the second term
We are always advised to study harder in the second term by the teacher.
9. dangerous driving causes many accidents
Many accidents are caused by dangerous driving.
10. people can grow rubber trees in tropical countries
Rubber trees can be grown in tropical countries.