41.   Now is the time to block their entrance.

42.   Opposition party members have been blocking the entrance to the budget committee room since yesterday to prevent a vote.

43.   Opposition party members have been blocking the entrance to the budget committee room since yesterday.

44.   Outside Neiman Marcus, anti-fur demonstrators partially blocked the entrances, but shoppers managed to squeeze through the one unobstructed door.

45.   Players are accustomed to skating on bad ice in practice sessions on the road, or having a Zamboni blocking the entrance to the rink.

46.   Protesters were arrested for trying to block the entrance to the exhibit.

47.   Rescuers worked cautiously to find a way to reach the four workers trapped beneath tons of rubble that blocked entrances to the tunnels.

48.   Security guards block entrances to office buildings even though they house the most humdrum corporate bureaucrats.

49.   Shuttle buses waiting at the train station were blocking their entrance, so their business was down by half and likely to get worse over the weekend.

50.   Staniford, who uses a wheelchair, says she often finds a narrow door blocking her entrance to the bathroom.