21.   Several devices that have been successful in modern surgery include hip replacements, contact and intraocular lenses, heart pacemakers and so on.

22.   Some centres had been very successful in training these children to make valuable objects.

23.   That has been successful in reviving the national economy as a whole.

24.   That is to say, certain action schools were successful in changing attitudes, while others were successful in shifting option choices.

25.   The Association was extremely successful in improving the lot of Bank Officials who previously had meagre earnings and poor conditions of employment.

26.   The band was incredibly successful in the eighties.

27.   The case of Thailand illustrates why family planning programs have been so successful in many countries.

28.   The company has been successful in cultivating a very professional image.