101.   As bad as that was, the second period was much worse.

102.   Arbitrary waiting periods are stupid.

103.   As one season gives way to another, the scientists said at a NASA briefing in Washington, there is a period of rapid oscillation between the two states.

104.   As numerous studies have indicated, that period of development is crucial for girls.

105.   As the end approaches, Muslims believe, there will be a period of moral decay.

106.   As with airlines, there are blackout periods for free travel.

107.   As with AIDS, the incubation period is very long.

108.   Because the BSE incubation period can be several years, we must consider that a protracted BSE battle has just begun.

109.   Because the employee must return to work immediately after an interim rest period, Congress had to determine whether such a rest period would be sufficient to alleviate fatigue.

110.   Because this boom period was under the administration of Ulysses S. Grant, the style was also occasionally referred to as the Grant Style.