Certain prepositions (after, as, before, since, until) serve as subordinating conjunctions when they're followed by a clause: 1  You better get out of town before sundown. (Before is used as a preposition.) 2  Many people run out of ideas long before they run out of words. (Before is used as a conjunction.)
Sponsored Topics. Foster City is an affluent planned city located in San Mateo County, California, 94404. As of the 2010 census, the city had a total population of 30,567. Forbes ranked Foster City #10 on their 2009 list of America's Top 25 Towns to Live Well.
According to the United States Census Bureau, the town has a total area of 51.9 square miles (134 km 2), of which, 51.1 square miles (132 km 2) of it is land and 0.7 square miles (1.8 km 2) of it (1.41%) is water. Foster contains Rhode Island's highest point, Jerimoth Hill, with an elevation of 248 m (812 ft).oster is a town in Providence County, Rhode Island, in the United States.