Not as easy as I thought

I still stand by what I said earlier in the week. Preparing this presentation is still better than studying for exams.

But it's definitely not as easy as I thought it would be.

Sure...I finished my first draft, fairly decently, in about an hour. And my supervisor didn't have all that much to criticism for it.

But now that I've done it up properly, I'm re-reading my presentation and tried it out once...I find a lot of questions I could probably ask as the lecturer evaluating me, and I wouldn't have a very good answer to it. Thing is these things aren't covered in my thesis either. And I got pretty good comments for my written thesis. Do I just suck or am I expecting too much of just an undergraduate thesis?