11.  A clip-on bobbin with a Betalight is used at night, with the Optonic of course.

12.  A combination of psychometric methods and direct observation and discussion was used.

13.  A commonly used argument in favour of speech recognition is that it is the most natural communication medium.

14.  A comparatively rare plant, Acorus is propagated with difficulty but it is a very Decorative plant when used in aquariums.

15.  A computer system is used to collate information from across Britain.

16.  A crack had developed in one of the main cooling pipes which are used to convey water.

17.  A cracker can also eavesdrop using wiretapping, radio, or auxiliary ports on computers, which are used by network programs.

18.  A device used to produce maps, architectural drawings and other graphic output.

19.  A diary based development and reporting approach was used in a few cases where close contact with the project team was feasible.

20.  A dozen writers and wits used to gather at the Algonquin Hotel for lunch.