---Well done Tom!---Thanks. But given more time I it better.A. shouldn’t have doneB. co

问题补充：

---Well done, Tom!

---Thanks. But given more time, I it better.

A. shouldn’t have done

B. could have done

C. might not do

D. could do

答案：

A. shouldn’t have done

(答案→)B. could have done

C. might not do

D. could do

解析：考查情态动词及虚拟语气。shouldn’t have done本不应该做某事，而实际上做了，could have done 本可能做某事而实际上没有做，句意：汤姆，做的好！谢谢，但是如果给我更多时间的话，我本可以做的更好一些。故选B。