21.   Not during this US Open.

22.   Now the area is managed by the Inyo National Forest and open only during daylight hours to provide a more wholesome family experience.

23.   One of them, New York-New York -- built to resemble the Manhattan skyline -- was set to open during the weekend.

24.   Open during museum hours.

25.   That facility opened during World War II as the first U.S. plant to produce plutonium for nuclear weapons.

26.   The bakeries will be opened during a five-year period.

27.   The camp at Oswego - a former Army base called Fort Ontario - was the only American refugee camp opened during the war.

28.   The danger is not the air bags themselves, but the speed with which they open during an accident.

29.   The company plans to keep all its Barneys stores open during bankruptcy.

30.   The gate was opened during the incoming tide, but was closed during the outgoing tide.