The greatness of a book depends (a) ______ on the accountability among the readers. If we read a book only once, we cannot discover many things in it. (b) _______ basing on one reading, we cannot judge the standard of a book. (c) ________ a book is praised highly, we have no doubt about the greatness of the book. (d) _______ , by the first reading, we may not understand a book. (e) _______ if it is read more thart once, we can understand the greatness of the book easily.
