101.   This meant Sorley had to lean further out of the van to grab it and as the door opened wider I got a good look inside.

102.   Then he stared at the phone rather than me for about a minute until the door opened.

103.   The door opened and Cornelius Murphy was propelled into the science room.

104.   The door opened and Cornelius was ushered inside.

105.   They stood, silent and waiting, until the side door opened and Alan Tate came in.

106.   He enters the room key into the cylinder and turns the key, but the door will not open.

107.   On the right-hand wall of the corridor ahead of me, a door opens.

108.   We hear the door open.

109.   Two blue carriages shudder to a halt beside me, and the train doors open.

110.   But before I can turn it, the door opens.