---What do you think of his talk on Information Technology?---Oh, excellent. It's worth A

---What do you think of his talk on Information Technology?
---Oh, excellent. It's worth ．
A. listening to
B. being listened to
C. listening of
D. to be listened to

(答案→)A. listening toB. being listened toC. listening ofD. to be listened to解析：句意：上文，你认为他的信息技术的报告如何？下文，很好，值得听。Be worth doing值得做的，listen to是固定用法，意思是听，选A。

就是这个解释