4. fill in the verb in the past active or passive voice. 1. the clown (entertained / was entertained) the public. 2. we (arrived/ were arrived) at the camp in time. 3. many experiments (did/ were done) under water. 4. many people (invited / were invited) to the festival. 5. they (discussed / were discussed) many exciting things. 6. i (learnt / was learnt) many interesting things in this unit. 7. what artist (painted / was painted) this picture?
