31.   He also invested in a new major shopping center in his old neighborhood, where none had existed before.

32.   He blames the thriving economy, which has created demand for lawyers in places where it hardly existed before.

33.   He has laid waste to the game as it existed before.

34.   He proposed a return to the fund-raising free-for-all that existed before the Watergate scandal a quarter-century ago led to the enactment of existing law.

35.   He says her contribution is building a foundation for the appreciation of photography in a region where it had barely existed before.

36.   He speaks admiringly of the Spanish society that existed before the expulsion, where Christians, Muslims and Jews worked together in science and other fields.

37.   If Chavez has destroyed almost all the government institutions that existed before his arrival, does Venezuela have something ready to fill that void when he disappears?

38.   If so, then genetic molecules had to exist before membranes.

39.   I saw a sleigh, but a sleigh unlike any that could ever have existed before.

40.   Indeed, any stereo recording can be reprocessed to heighten its left-right differential and thus produce an effective surround mix where none existed before.