---Who has made a mess in my room? ---Who else it but your naughty son?A. could doB. could

发布时间：2020-08-15 01:51:55

---Who has made a mess in my room?
---Who else        it but your naughty son?
A. could do
B. could have done
C. did
D. has done

网友回答

A. could do
(答案→)B. could have done
C. did
D. has done
解析：考查情态动词用法。语境表示对过去发生并延续到现在的情况的推测，用could have done表示不肯定的语气。
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