问题补充：
---Oh, you’ve got this English-Chinese dictionary. How do you find it?
----It is . I turn to it whenever I meet with new words.
A. of no use
B. great useful
C. of great use
D. not useful
答案：
A. of no use
B. great useful
(答案→)C. of great use
D. not useful
解析：句意：噢，你买了这本英汉字典，你认为怎么样？非常的有用，不管什么时候我遇到生词就向它求助。be of great use= very useful,所以选C。
