问题
选择题
(2013·济南一模)________ you are unable to deal with it, perhaps we should ask someone else for help.
A．Although
B．While
C．Since
D．Unless
答案
答案：C
选C 考查状语从句。句意：既然你不能处理此事，我们也许应该请别人来帮忙。since“既然，由于”，符合句意。although“尽管”；while“当……时”；unless“除非”。