Mr. Wu came into the classroom a book in his hand.A. holdB. holdsC. holdingD. held

问题补充：

Mr. Wu came into the classroom , a book in his hand.

A. hold

B. holds

C. holding

D. held

答案：

A. hold

B. holds

(答案→)C. holding

D. held

解析：句意：吴老师手里拿着一本书来到教室。现在分词作状语表示正在进行的伴随性动作，和句子主语是逻辑上的主谓关系，结合语境可知选C。