Question

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

A．If B．Unless C．Although D．Because

 

Answer 1

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。