21.   This was the group, formally under army control, that operated as a death squad during the rule of Ferdinand Marcos.

22.   The foam operates as a very effective filter.

23.   Borusa had no wish to become president, instead preferring to operate as an eminence grise behind the scenes.

24.   ...a farm which operates as a safe house for criminals on the run.

25.   After the election, opposition groups again protested against allowing the MRF to operate as a political party.

26.   Personal Interviews must operate as collaborative activity between tutor and students directed towards reaching agreement on the achievement of learning outcomes.

27.   What if that forceful identity for which she is so severely castigated somewhere also operates as a kind of pull?

28.   The Service also operates as an agency which puts students seeking rented accommodation in touch with owners of vacant accommodation.

29.   The community charge will operate as a poll tax and will be paid irrespective of income.

30.   A Mealstream oven can be operated as a straightforward commercial microwave oven.