81.   The robbery took place in the early hours of Sunday morning.

82.   The talks lasted until the early hours of the morning.

83.   There was a knock on the door in the early hours of the morning.

84.   These data are there for the asking, and they can provide a shortcut to long hours of interviews and observations.

85.   They endured hours of backbreaking work in miserable conditions.

86.   They reached San Francisco in the early hours of the morning.

87.   They used to have hours of fun listening in on what people were doing in their hotel rooms.

88.   Thirty minutes of squash gives you as much exercise as an hour of any other game.

89.   This is the reward for hours of basic training.

90.   Through the long slow hours of darkness he saw her lovely face and forgot that she did not love him.