1.   Slabs of concrete had been used to build a pathway for people to walk on.

2.   The bonds will be used to build a downtown sports arena.

3.   The materials used to build villas varied according to what was easily available nearby.

4.   The method used to build the most stable and convenient structure possible will vary with the soil texture and climate.

5.   The tools that the ancient Egyptians used to build their temples were extremely rudimentary.

6.   When he demonstrated the type of wood he will use to build the vessel ... it sank.

7.   There were six million visitors in all, and the profits from the exhibition were used to build museums and colleges.

8.   This identifies which of the modules called up in CONTAINS-SOURCE-OF should be used to build the package.

9.   When he demonstrated the type of wood he will use to build the vessel... it sank.

10.   An enormous blue machine nicknamed Rock Crusher breaks up the slabs and the resulting riprap is then used to build temporary roads through the dump.