21.   Can an old left-winger really learn new tricks?

22.   Can you teach an old bull new tricks?

23.   Can you teach an old propagandist new tricks?

24.   Each year, there is some new trick that lets taxpayers get away with paying much less than they owe.

25.   Even an old building can be taught the new trick, as the GTE Corp. has demonstrated at its headquarters.

26.   Even patriarchs can learn new tricks.

27.   Even dependable Fine Gardening, published by Taunton Press in Newtown, Conn, is trying new tricks.

28.   Even as aging dogs learn new tricks, they perform them to the same old score.

29.   For the moment, at least, Wall Street is convinced this is one old dog that has learned a new trick.

30.   He has a child to support, no job, a limited range of skills and a willingness to learn new tricks.