_______ difficult and challenging the task may be, we must finish it on time, be

题型：不详难度：来源：

_______ difficult and challenging the task may be, we must finish it on time, because there is a possibility _______our work will go down in history.

A．Whatever; that	B．However; as
C．Whatever; which	D．However; that

答案

D

解析

试题分析：考查让步状语从句和同位语从句。第一空让步状语从句中，however修饰形容词difficult and challenging,而whatever则修饰名词，故排除答案AC，第二空possibility后接一同位语从句，从句不缺成分，故填连接词that。句意：无论这个任务多么困难和具有挑战性，我们必须及时完成。因为我们的工作有可能载入历史。