21.   A middle-aged woman answered the door.

22.   Carol answered the door as soon as I knocked.

23.   He ran downstairs to answer the door.

24.   No one answered the door.

25.   If so, answering the door was a dangerous option indeed.

26.   And, just as if he too suspected her caller was Travis, he had taken the diabolical liberty of answering her door himself.

27.   She went to answer her door, and just knew it would be him.

28.   Nightingale skittered into the room, a can of polish in her hand, on her chirpy way to answer the door.

29.   No one was answering the door at the house in Stonehouse where Mr Norton lives with his wife and two children.

30.   Yesterday traders tracked down show chairman Alistair McCloud to his hotel room in Aylesbury, but he refused to answer the door.