Why not videos this is frustrating

For two would the conclusion be he watches olympics and likes wasabi? Why just wasabi?

On question one final step, do you have to counterpositive the last sentance? I had Weed>Meth>Not LSD> Not Heroin

Do we need to then take contrapositive? If so why?

Where do you get the drills or practice problems related to these lessons?

@ryokace I think in a sense it is that. From my understanding I was thinking the same thing, but their answer appears to be more detailed. I think in understanding though, it is a similar idea. I think, don't quote me.