Answer:
1. Dinner was cooked for my family last night.
2. The CIA director and his close advisors have pursued a policy of whitewashing and cover-up.
3. The presiding officer vetoed the committee's recommendation.
Step-by-step explanation:
Bold = Verb
Underlined = Subject
It is in active voice if the subject is mentioned AFTER the verb or not mentioned at ALL. If it was in the passive voice the verb is mentioned AFTER the subject.