31.   Building collapses, common occurrences in Egypt, are generally due to shoddy construction materials or additions built without permits.

32.   Building collapses are common in Egypt, where poor materials and shoddy construction techniques result in weak structures.

33.   But China has suffered a fatal series of building collapses and other disasters blamed on poor construction standards and lax enforcement of safety rules.

34.   Building collapses are not uncommon in Egypt, where poor materials and shoddy construction techniques result in weak structures.

35.   Building collapses are not unusual in Egypt and are often blamed on shoddy construction or the unauthorized addition of extra stories.

36.   But a week after the incident, experts were unable to confirm whether the hotel was destroyed by a bomb or it was a case of a building collapse.

37.   But building collapses are not unusual in Egypt, and are often blamed on shoddy construction or the unauthorized addition of extra stories.

38.   China has suffered a fatal series of building collapses and other disasters blamed on poor construction standards and lax enforcement of safety rules.

39.   Critics ribbed the operatic war horse as a bad-air day followed by a building collapse, but Moshinsky sees it as a tragedy.

40.   Fear of more building collapses spurred many to spend the night in the open, huddled in blankets.