Mrs.White found her husband surroungded by letters and papers and __ very worried. 求完整正确的解释

问题描述:

Mrs.White found her husband surroungded by letters and papers and __ very worried. 求完整正确的解释
a.look
b.looks
c.looking
d.to look

选C.AND连接两个并列谓语found.
相当于:Mrs.White found her husband surroungded by letters and papers and found her husband looking very worried.
用的是find sb doing sth.的结构,ing表示主动.