It’s exactly we do has changed the world.
A. which; that
B. how; that
C. how; what
D. what; that
网友回答
A. which; that
B. how; that
C. how; what
(答案→)D. what; that
解析：考查强调句型和主语从句。本题第一空what引导的是主语从句what we do；在句中what作为动词do的宾语。第二空的that与前面的it is构成强调句型。句意：正是我们所做的事情改变了整个世界。故D正确。