Rewrite the active sentences in the passive. Make any necessary changes. Use the Present Simple or the Past Simple.

1. Every year, my school holds a competition for “best inventor”.
2. They give you materials and ask you to design something.
3. My school encouraged me to take part this year.
4. A group of five teachers make the final decision.
5. They test the inventions for usefulness.
6. They give a prize for the invention.
7. They gave the prize for the “best inventor” to my friend Jo.
8. They present the prize at the end of school ceremony.

1. A competition for "best inventor" is held by my school every year.
Explanation: The active sentence "My school holds a competition for 'best inventor' every year" is rewritten in the passive voice, with the subject ("my school") becoming the object and the verb "holds" changed to the passive form "is held".

2. You are given materials and asked to design something.
Explanation: The active sentence "They give you materials and ask you to design something" is rewritten in the passive voice, with the subject ("they") becoming the object and the verb "give" changed to the passive form "are given".

3. I was encouraged by my school to take part this year.
Explanation: The active sentence "My school encouraged me to take part this year" is rewritten in the passive voice, with the subject ("my school") becoming the object and the verb "encouraged" changed to the passive form "was encouraged".

4. The final decision is made by a group of five teachers.
Explanation: The active sentence "A group of five teachers make the final decision" is rewritten in the passive voice, with the subject ("a group of five teachers") becoming the object and the verb "make" changed to the passive form "is made".

5. The inventions are tested for usefulness.
Explanation: The active sentence "They test the inventions for usefulness" is rewritten in the passive voice, with the subject ("they") becoming the object and the verb "test" changed to the passive form "are tested".

6. A prize for the invention is given.
Explanation: The active sentence "They give a prize for the invention" is rewritten in the passive voice, with the subject ("they") becoming the object and the verb "give" changed to the passive form "is given".

7. The prize for the "best inventor" was given to my friend Jo.
Explanation: The active sentence "They gave the prize for the 'best inventor' to my friend Jo" is rewritten in the passive voice, with the subject ("they") becoming the object and the verb "gave" changed to the passive form "was given".

8. The prize is presented at the end of the school ceremony.
Explanation: The active sentence "They present the prize at the end of the school ceremony" is rewritten in the passive voice, with the subject ("they") becoming the object and the verb "present" changed to the passive form "is presented".