Question

_______ Sunday, rather than _______ at home, I preferred ___

Answer 1

A

It being Sunday是独立主格结构,相当于Because it was Sunday作原因状语;后两空考查prefer to do sth. rather than do sth.的倒装结构。另外,此处独立主格结构中的it作逻辑主语不可以省略。