问题
选择题
--- 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
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。