问题
选择题
The film which _______ the book by Jack London is well worth seeing.
A．based
B．is based in
C．is based on
D．to be based
答案
答案：C
考查固定结构。Be based on…以……为基础,为依据。which _______ the book by Jack London是定语从句，先行词是The film。句意：这部以Jack London的小说改编的电影非常值得一看。所以选C。