—Sorry,sir.Butisthisumbrellayours?     —Oh,sorry.Ijustt...

问题详情：

— Sorry, sir. But is this umbrella yours?

      — Oh, sorry. I just took it 　　　　. Mine is under the seat.

         A. for yourself                     B. by mistake  

         C. in person                        D. at last

【回答】

B

知识点：动词和动词短语

题型：选择题