The book is great value. It is well worth twice.A. of readingB. of to be readC. with r

问题补充：

The book is great value. It is well worth twice.

A. of, reading

B. of, to be read

C. with, reading

D. with, to be read

答案：

(答案→)A. of, reading

B. of, to be read

C. with, reading

D. with, to be read

解析：句意：这本书是有价值的。它值得读两遍。be of +名词，可以表示形容词。be worth doing 某事值得做。根据句意，故选A。