21.   Redundant parts were extensively used to ensure reliability, yet the whole unit was little bigger than a large microwave oven.

22.   Since the principal function of grammar is to indicate how units of meaning are to be combined, this is scarcely surprising.

23.   That provision allows owners to evict tenants if the unit is to be occupied by the owner or an immediate relative.

24.   The command unit was in its strategic position in the town square.

25.   The control unit can be detached from the base.

26.   The environmental control unit was a squat concrete abutment with metal slotted vents.

27.   The large police unit was surprising also in the absence of even the mildest hint of trouble.

28.   The next unit is the one Rocktron should be most proud of.

29.   The opted-out units are no longer under the direct authority of the regional health authorities but report directly to the Secretary of State.

30.   The switch can be mounted on the front panel and will show when the unit is powered-up.