21.  I was real good at sports and I wanted to be a professional football player.

22.  If a neural network system is good at recall functions only, then it is necessary to impose constraints and limitations.

23.  In spite of variations, distortions, and omissions, humans are good at retrieving the correct pattern.

24.  In this job you need to be good at keeping your head in a crisis.

25.  It is extraordinary that such a young boy should be so good at maths.

26.  It sells businesses it does not think it will be good at, such as those in high-technology, volatile Markets.

27.  Jazz musicians are good at improvising.

28.  Knowledge Adventure is very good at throwing out nuggets of information, and placing them into some sort of context.

29.  Leese was good at knowing the absolute limits of aircraft.