Active voice is when the subject performs the verb. The answer is 'Our puppies played at the cool new dog park' because the puppies are playing, while the rest of the verbs in the other choices are not being acted at by the subject.
C) We went to hear the man himself speak.
Himself is an intensive pronoun. Intensive and reflexive pronouns end use the object form of the pronoun and end in -self. Intensive pronouns are found immediately after the antecedent. In this case, after "man" because "himself" is intensifying "man".
Answer:
the bicycle is ridden by him
The answers are: light, joy, and leisure.