1.   Almost all the dormitories required spring-activated doors that automatically close to keep fires from spreading, the fire marshal found.

2.   If a supply pipe leaks or bursts, this is the valve to close to keep water from feeding into that pipe.

3.   Remember, Brown says, to keep the front door closed.

4.   The major leg vein, called the saphenous vein, has a series of valves that open and close to keep blood flowing toward the heart.

5.   The owners of these shops claim they have to keep their inventory closed to keep brides from pawing the merchandise.

6.   Neither should it mean than Western countries keep their markets closed to keep out cheaper imports from developing countries, it said.

7.   Roads were closed to keep reporters away.