MY VOCAB PRACTICE

1. Contradict
   From the investigation we've carried out so far it's clear that His testimony contradicts hers.
2. Controversy
   There was controversy at the meeting today, both parties failed to come up with a solid conclusion.
3. Contrary
   Alvin is totally different compared to his siblings, is it right to say he's a contrary child, John enquired.
4. Counteract
   So far so good the reaction have been able to counteract all possible mixtures, i guess it's high time we involve a catalyst.
5. Counterproductive
   I think we'll have to try out new techniques since old ones have been counterproductive so far, Brian vents.