51.  He saluted briefly and opened the door, afraid that she might be about to cry.

52.  He switched on the light, opened the door, and went into the dim public space.

53.  He used his free hand to open the door.

54.  Helen opened the door.

55.  I always look through the peephole before I open the door for anyone.

56.  I had scarcely opened the door when the dog came running in.

57.  I heard footsteps and then Sonya opened the door without unhooking the chain, just enough to check me out.

58.  I heard the door knob turning, and then Frank opened the door and tiptoed in.

59.  I open the door and burst into the warm night air.

60.  I opened the door and Dad was standing there.