My English-Chinese dictionary has disappeared．Who ________ have taken it?

My English-Chinese dictionary has disappeared．Who ________ have taken it?

A.should

B.must

C.could

D.would

答案及解析： C

解析：

我的英汉词典不见了，“可能”是谁把它拿走了？would不用来表猜测；should意为“应该”，must意为“一定”，都不符合题意。