41.   It was a small incident but it provoked weeks of violence.

42.   Jill has killed herself during the week of his final exams.

43.   Most colleges will allow students to change their subject choices in the early weeks of an academic session.

44.   Often the weeks of isolation progressed to weeks on a general ward, then to more weeks of rehabilitation.

45.   Once more, the Market had wide swings, capping a week of turbulence.

46.   Patients can usually walk without assistance within a week of the operation.

47.   Petersburg the final weeks of the off-season to be with his father.

48.   Robbie Williams arrived in New York to do a week of promotion for his new record.

49.   Some go through weeks of eating great quantities of potato chips or ice-cream sandwiches before the forbidden foods lose their allure.

50.   Speculators, however, repeatedly inflated the price enormously within days or weeks of release.