21.   The centre section deals with gastrointestinal fermentation and metabolism leading to a final section on the whole animal.

22.   The company will strike deals with third parties for most of the new components.

23.   The examination boards predicted a price war after one offered discounts in return for an exclusive deal with schools.

24.   The first part of this textbook deals with mechanics.

25.   The low-emission consortium deals with technology that will cut petrol engine emissions to meet the tightening regulations.

26.   The most often quoted obligations deal with the nature of the service and the need to ensure that content is impartial.

27.   The non-performing writer could be offered a firm one-year deal with options covering the next four years.

28.   The two countries are trying to work out a peace deal with the whole world watching.