Respuesta :
Answer:
(1) The mona lisa was painted by Leonardo da Vinci.
(2)The pencil was held bye the teacher.
(3)The ball was balanced by the seal on its nose.
(4)The tree was pushed over by the boys.
The given sentences can be converted into the passive voice as follows:
The Mona Lisa was painted by Leonardo da Vinci.
The pencil was held by the teacher.
The ball was balanced by the seal on its nose.
The tree was pushed over by the boys.
What is Passive Voice?
Passive Voice is denoted as the grammatical formations in which the object replaces the subject and takes a lead role.
While the subject becomes passive as it receives the action instead of performing it.
In order to do so, the past form of the verb has been replaced by 'Object + was/were + past participle form of the verb + by + subject' as mentioned above.
Learn more about "Voice" here:
brainly.com/question/10007416