1.   Cut to size, push between rafters, and conceal behind plasterboard lined with vapour barrier.

2.   He ignored both the display cases and the safe which was concealed behind a framed eighteenth-century engraving of the City of London.

3.   He yawned again, uncontrollably, concealing it behind his service-card.

4.   Unfortunately he has concealed them behind a flimsy facade of demagoguery.

5.   The controls are concealed behind a panel.

6.   The tube was concealed behind a chest of drawers and connected to a box.

7.   As the scene begins, her upper torso is concealed behind a book.

8.   At one time, they cowered in their homes, their beloved fur zipped inside a garment bag concealed behind the camelhair at the back of the closet.

9.   A video camera the size of a matchbox with a wide-angle lens was concealed behind an opening no bigger than a pin hole.

10.   Cooking is theater, and concealing it behind closed doors is tantamount to not raising the curtain onstage.