--- How do you find Mr Li’s lecture?
--- Good indeed. It many problems we have e across in our study.
A. says
B. talks
C. covers
D. refers
网友回答
A. says
B. talks
(答案→)C. covers
D. refers
解析：考查词义辨析。says说出，talks谈话，covers涵盖，refers涉及，句意：你认为李先生的讲座怎么样？的确非常好，他的讲座涵盖了我们在学习中遇到的许多问题。所以选C。