worth和be worth of

题目

worth和be worth of
It's ＿＿ much more than I paid for it.
A.worth B.worth of C.worthing D.worthy
为什么不选B.be worth of不是值得的意思吗?

答案

be worth of + doing sth "值得做某事" 一般要接 doing sth
而 be worth sth "值得什么"
例如:This book is worth of reading.