1.   A plump middle-aged woman wearing a white coat greeted them when the doors opened again.

2.   A train pulls in and the doors open.

3.   After a few seconds, the door opened and Mrs Barnes invited me in.

4.   As the door opened, the candles flickered unsteadily.

5.   But after a few minutes the door finally opened, and a long conversation ensued.

6.   Doors were opening up and down the street, casement windows were flung wide and shouts were heard.

7.   He had the passenger door open before she could free herself from the seatbelt.