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42. When Peter was at collage, he paid a __________ visit to the library.

A. often                   B. frequently            C. recent                  D. Frequent

42. When Peter was at collage, he paid a __________ visit to the library.

A. often                   B. frequently            C. recent                  D. Frequent

42. When Peter was at collage, he paid a __________ visit to the library.

A. often                   B. frequently            C. recent                  D. Frequent

42. When Peter was at collage, he paid a __________ visit to the library.

A. often                   B. frequently            C. recent                  D. Frequent

42. When Peter was at collage, he paid a __________ visit to the library.

A. often                   B. frequently            C. recent                  D. Frequent