题干


---Where is my reference book? It was here a moment ago.
---Someone ______ it by mistake.

A:should have take

B:must take

C:might take

D:must have take

上一题 下一题 0.0难度 选择题 更新时间:2012-03-29 02:36:56

答案(点此获取答案解析)

D