The reason she gave for not being present was the heavy snow prevented her ing.
A. why; because
B. why; whether
C. that; that
D. how; that
网友回答
A. why; because
B. why; whether
C. that; that
D. how; that
解析：本题考查定语从句和表语从句。第一空所填词引导定语从句修饰先行词reason，由于是作动词gave的宾语，所以可以省略；第二空是that引导的表语从句。