I have made clear I have nothing to do with the accident.
A. it; what
B. that; that
C. this; what
D. it; that
网友回答
A. it; what
B. that; that
C. this; what
(答案→)D. it; that
解析：句意：我已经明确了我和这个事故无关。这里使用了it做形式宾语的句型：make it+adj+that从句，it是形式宾语，that引导的是真正的宾语从句，所以选D。