---Are you content with her lecture? ----Far from that. It .
A. may have been good
B. couldn’t have been worse
C. can’t be better
D. must be better
网友回答
A. may have been good
(答案→)B. couldn’t have been worse
C. can’t be better
D. must be better
解析：考查情态动词用法，A意为可能很好 B不能再糟糕了 C 再好不过了 D一定很好
句意为，----你对他的讲座满意吗？----远非满意。再糟糕不过了。