21.   Drugs became a part of her life.

22.   Drugs have become an indispensable part of modern health care.

23.   Drugs are becoming more accessible, leading children to experiment with more dangerous drugs at an earlier age, McCaffrey said.

24.   Drugs became his crutch, his escape from the pressures of his high profile.

25.   Drugs became more widespread and buildings became more run down.

26.   Even so, drugs have become an essential part of American medical care.

27.   For many, drugs became the substitute for drinks.

28.   Gordon watched some of the dealers grow up, as the drug became an economic mainstay in a place short on jobs.

29.   His case comes at a time when drug trafficking has become a hot political topic in Mexico.

30.   If it also proves effective in treating more common solid tumors, such as breast, prostate, or lung cancers, the drug could become a blockbuster.