问题
选择题
--Is everything __ we need to do __?
--Yes. You needn’t worry about it.
A．which; has done
B．which; doing
C．that; has done
D．that; done
答案
答案：D
本题考查定语从句。在定语从句中，当先行词是everything时，关系代词用that。句意：——这是我们所需要做的一切么？——是的，你们不必担心。