1) New planets are discovered every year by scientists a) Active voice b) Passive voice 2) The engineers are designing a new high-speed train. a) Active Voice b) Passive voice 3) The suspect was arrested after a long investigation by the police a) Active voice b) Passive voice 4) A difficult concept was being explained to the students by the teacher. a) Active voice b) Passive voice 5) The committee has approved the new environmental regulations a) Active Voice b) Passive voice 6) The scientists had discovered the solution before publishing their research a) Active voice b) Passive voice 7) A new product will be launched next month a) Active voice b) Passive voice 8) They expect the experiment to be completed soon a) Active voice b) Passive voice 9) The government should take immediate action to reduce pollution a) Active voice b) Passive voice

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