题目

题型：不详难度：来源：

She had to work deep into the night, ______she couldn"t have spread the messages to all the relevant people successfully.

A．while

B．but

C．otherwise

D．so

答案

C

解析

试题分析：考查虚拟语气。句义：她不得不工作到深夜，否则的话她就不能成功地把信息传播到相关人员。把握关键词couldn"t have spread，对过去的虚拟，根据前面She had to work deep into the night过去的事实，otherwise +过去的虚拟，所以C正确。