Question

--Well done, Jack !  
--Thanks. But given more time, I__________ it better.

A．shouldn't have done	B．could have done
C．might not do	D．could do

Answer 1

B

本题为情态动词的考查。根据题干得知动作已经发生，情态动词+动词的完成式表示对过去的推测。