题目

题型：不详难度：来源：

________ the jewels were locked in a strong box，the thieves stole them without any difficulty.

A．If

B．Unless

C．Although

D．Because

答案

C

解析

句意：尽管珠宝被锁在一个结实的箱子里，小偷还是毫不费力地偷走了它们。故此处用Although引导让步状语从句。