It seemed strange because they hadn't knocked a first time.

She stood like that a long time before she knocked and entered the room.

He said, 'One time that man will come knocking at my door.'

I saw one or two lights down driveways, but it was getting late, not a good time to be knocking on strangers' doors.

And next time, knock before you barge into my office.

This time, passing from room to room, I didn't even knock my shoulder against the jamb.

He reached the door just as the music sounded a third time and the visitor knocked again.

The first time knocked her down and badly bruised her shoulder.

She punched her hands into Jeffrey's chest again, this time hard enough to knock him back into the house.

Many times in his career he had knocked at the door of death.