Your current options seem correct.
Social workers are in prison, Therapists are often in schools, and emergencies need managers.However, I can't see the full answer for the first, so it might be the other way around for the Therapist one.
Answer:
It should be C, That's what I learned back then.
At the most basic level, the active voice emphasizes the person or agent who performs an action, in short, the “actor.” The passive voice emphasizes the recipient of the action or sometimes the action itself.
Answer:
1. Ravi is playing (Ravi is subject and playing is predicate)
2. Ramu is going to completed this chapter (Ramu is sub going to complete this chapter is pre)
3.the barking of bog is too loud (the barking is pre and bog is sub
