The teacher came into the office,＿in hand. A.a book was B.and a book C.a book D.book 为什么?

题目

The teacher came into the office,＿in hand. A.a book was B.and a book C.a book D.book 为什么?

答案

D.book 为正确表达.
这是独立主格结构,做伴随状语,原本是with a book in his/her hand..这里省略了with和冠词a.如果有with,则要完整的表达为 with a book in his/her hand.
with+名词或代词+介词短语,属于独立主格结构的一种形式,可以省略with及相应的冠词a.是原来的结构变得简洁.