31.   It is a measure of the length of time during which citations to theses are found in the literature.

32.   At different times during the war, reports came in of the need for jet fuel.

33.   I can remember my mother telling me that he used to look out of his bedroom window many times during stormy nights.

34.   To develop a comprehensive management development programme to encourage members to spend time during their carrer to keep up with new ideas and trends.

35.   Postgraduate students are welcome to call at the Service at any time during their course and are encouraged to take advantage of the facilities offered as early as possible.

36.   Students may apply at any time during the academic year.

37.   Now she had rudely stripped the corpse, and at no time during the action had she thought of that strip of white fabric...

38.   No subject, however, complained of nausea or any other gastrointestinal tract symptoms at any time during the submaximal plateau.

39.   It happened certainly two or three times during my training.

40.   He does it at least three times during meals.