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

問題詳情：

—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. by accident  D. at last

【回答】

B

知識點：介詞和介詞短語

題型：選擇題