31.   She coldly responded that that level of donation was not worth the paperwork, and I need not bother.

32.   Staffing levels are currently insupportable.

33.   The alternative - that these lower levels are partly responsible for the development of oesophagitis - is also possible.

34.   The average age of entering students was fourteen, and the usual level of preparation was correspondingly low.

35.   The background radiation level was normal.

36.   The high level of calls is a clear demonstration of the need for this service.

37.   The intensity level is different in the playoffs.

38.   The level of difficulty is high, especially for those new to the genre.