1.   But if the eye can remain open without being seen, then the prey has the best of both worlds.

2.   By the same token, cinemas had no operators, and so few halls remained open.

3.   From retail stores to hospitals to universities, doors remained open as back-up generators kicked in almost immediately following the power outage.

4.   Its western counterpart apparently remained open, being used at one stage for spelt cultivation.

5.   Just why the guerrillas Decided to shoot down the unarmed plane remains open to debate.

6.   Many disadvantaged people will find an outlet for their abilities through whatever channels remain open.

7.   Many shops remain open on a Sunday, especially if cruise ships are in port.