问题补充:
What a pity! Considering his ability and experience, he better.
A. need have done
B. must have done
C. can have done
D. might have done
答案:
A. need have done
B. must have done
C. can have done
(答案→)D. might have done
解析:“What a pity!”暗示他的表现令人遗憾。鉴于他的能力和经验,他本来可能发挥得更好,因此用might have done,最佳答案为D。