11.   Early the next year, Clinton issued a directive to improve security at the laboratories.

12.   Elliott also said he plans to work hard to improve himself at tracks where his team has struggled in the past.

13.   Even the simplest and most obvious prescriptions, to do with improving security at domestic airports, pose a dilemma.

14.   For Lurie, the thinking is that the neighborhood, and the real estate market, could improve at any moment, so why not proceed with the project?

15.   For proof they cite studies in which people who received no medication improved at about the same rate as those given placebos.

16.   Food sales have improved at department stores and supermarkets nationwide, while clothing sales remain sluggish.

17.   For the better part of the last decade, Tesco has been concerned with improving operations at its stores rather than experimenting in cyberspace.

18.   Glad to see things are improving at Rutgers.

19.   Goodwin, who has been credited with improving productivity at National Steel, added the title of chief executive last July.

20.   Haydu said that despite the disappointing resuts, the test could serve as proof that the teaching of writing and grammar must improve at all grade levels.