31.   Such was the case with the idea that hydrogen fusion might occur at moderate temperatures within solid materials.

32.   The crash had occurred at a time of clear visibility and good weather conditions.

33.   The miracles which have since occurred at his grave have confirmed his holiness.

34.   The three areas can be described as ones of political - religious mediation occurring at different levels of social process.

35.   These generally occur at levels above the therapeutic range and subside when the dose is lowered.

36.   They usually occur at serum levels above the recommended therapeutic range.

37.   This can occur at any time but particularly when the student has been observed or supervised in her nursing care.

38.   This commonly occurs at high tide.

39.   Too many accidents are occurring at work because employers are not observing safety regulations.