How did you like the concert last night?- I enjoyed it very much but the dancers

问题补充：

--- How did you like the concert last night?

--- I enjoyed it very much, but the dancers a better job.

A. could have done

B. couldn’t have done

C. could do

D. had done

答案：

(答案→)A. could have done

B. couldn’t have done

C. could do

D. had done

解析：考查情态动词。could have done 本可能做某事而实际上没有做，句意：你认为昨天晚上的音乐会怎么样？我非常的喜欢，但是舞蹈演员做得更好一些。故选A。