题干
--- Is the ruler ________ the lost and found office yours?
--- Let me have a look. Oh, it isn't mine.
A：in
B：on
C：at
D：with
答案(点此获取答案解析）
A
--- Is the ruler ________ the lost and found office yours?
--- Let me have a look. Oh, it isn't mine.
A：in
B：on
C：at
D：with
