111.   At Greenwich the door opened behind me and someone else forced his way in.

112.   Whereas, when the door opens, and Summerchild enters, stooped beneath the lintel and diffidently smiling, I can hear him perfectly.

113.   The key clicked and the door opened.

114.   Lizzie must have come back, Sara said, but when the door opened, it was Matthew Preston who stood on the threshold.

115.   He was pressing hard on the button and standing patiently for the door to open.

116.   Then, as the office door opened, he seized the diversion.

117.   As they reached the top the door opened magically and a beaming, plump-faced woman was waiting to greet them.

118.   The first harbinger of the outside world came when the bedroom door suddenly opened and a maid came in with a tray.

119.   She broke off as the office door opened and Debbie burst into the room.

120.   She leant her head back against the hard cushion on the swivel chair, not bothering to open her eyes when the door opened again.