Freedom of speech.. 1st amendment
the right to bear arms.. second amendment
freedom of press. 1st amendment
I know the verb is racing. I think the subject participle is the car.
I would say anything debatable, if we use a real world topic like the death penalty. you could argue for it to be mandatory or to abolish it. If you want a lighter subject like pineapple on pizza (might not want to use this one if your doing a serious assignment) you could argue it doesn't belong and put the effects. I would find a controversial topic and see if you like it.
Hope this could help!
Answer: The adverb is, "twice"
Twice is adverb of frequency or adverb of number.