The key answer of exercise 6

I had the a serious talk with my parents last night. My exam results were badder worser than last time. They're probably the worstest worst ever! Dad was angryer angrier than he usually is and Mum was the same. Dad said having the a teenager in the house is the stressfullest most stressful thing he knows. I said, 'Don't worry, Dad, I can work more hard harder! Next year wil to be the importantest most important year of my life and I'm going to get the most good best marks in my class.' I couldn't think of anything more intelligent than that to say. I suppose it was more good better than saying nothing.