Final answer:
The provided sentences are all in active voice already, meaning the subjects are performing the actions in the sentences. No conversion from passive to active voice is necessary for these examples.
Step-by-step explanation:
To change the passive voice into active voice, the subject performing the action should be placed before the verb, making it clear who or what is completing the action. Here are the sentences provided transformed from passive to active voice:
- My father built the tree house. - This sentence is already in active voice, as 'my father' (the subject) is performing the action of building.
- Grade 8 students answered all the questions. - This sentence is also in active voice, with the 'Grade 8 students' as the subject doing the answering.
- Our old boys association organized the magic show. - Again, this sentence is already in active voice, with 'our old boys association' carrying out the organizing.
- Mr. Ananda Samarakoon composed the national anthem of Sri Lanka. - This sentence is in active voice, with 'Mr. Ananda Samarakoon' as the subject who composed.
- The boys broke the window glass. - This sentence is in active voice, where 'the boys' are the subjects that broke the glass.
All of these sentences are already in active voice, where the subjects are clearly performing the actions described by the verbs. The active voice is often preferred because it is more direct and vigorous than passive voice.