31.   The pieces are used judiciously throughout the house.

32.   The pieces were used to patch and restore the old tufa.

33.   The piece can be used to disguise and store a home entertainment center, a home office or, more commonly, clothes or linens.

34.   The style and content look back in time, as Bach often did, but there is something futuristic about how these pieces are used.

35.   The various versions of the new vaccine all use pieces of the pertussis bacteria instead of the whole cell used in the old vaccine.

36.   These pieces may be used singly or in combination.

37.   These chameleons of the chip world can be changed or upgraded an infinite number of times within a fraction of a second by using new pieces of software.

38.   This is a way of assembling programs by using prefabricated pieces of software code.

39.   Though arranged as a history of style rather than in period vignettes, Peirce often evokes the context in which the pieces were used or made.

40.   To get started, decide on how you plan to use the piece of furniture, which will help you decide on the colors and design.