1.   Dozens of people were trapped in the rubble when the building collapsed.

2.   The building collapsed in a deafening explosion.

3.   The rescue attempt went badly wrong when the building collapsed.

4.   Its wings were folded when the building collapsed and so the damage is mostly to the wing tips.

5.   Although the building did not collapse, the fire burned for more than six hours.

6.   As the first building collapsed, they wedged her into a doorway.

7.   Before his group reached the bottom, the building collapsed, trapping them for hours.

8.   Both buildings collapsed completely.

9.   About a half-hour later, the building collapsed.

10.   Alan G. Hevesi, the city comptroller, went to his office downtown where, he said, he watched both buildings collapse from his window.