試題詳解

36 Gratitude is not only the greatest of virtues, but the parent of all others.
(A)Gratitude is the greatest virtue and the source of other virtues as well.
(B)Gratitude is not only a great virtue but also a great virtuous element.
(C)Virtue is not only a great attitude but also a parent of other attitudes.
(D)Not only is gratitude a virtue, but the greatest parent of its generation.