职称英语考试

【单选题】 Police have still found no clues as to the whereabouts of the missing child.
A．reasons
B．signs
C．answers
D．marks

网考网参考答案：B
网考网解析：
clue“线索”，与sign同义。reason“理由”；answer“回答”；mark“痕迹”。 查看试题解析出处>>